Before my conversion, I often took psychedelic drugs (mostly LSD or psylocibin) and what I experienced during these experiences cannot be described with human words. From my experience, I have the impression that psychedelics introduce us in some way into the spiritual world. Most testimonies say the same thing. It is either Heaven or Hell. I do not know if some here have already done it. Before my conversion, I took LSD in order to find the Truth through the philosophical illuminations that I lived during each experience. One day, I took three hits (maybe 200 ug), and I saw things so beautiful that I will never forget it. I also understood intuitively the mystery of divine providence. I did not have faith yet. Afterwards, I feel converted, about 5 months later. I don't understand why I experienced all this. It's like I tasted a piece of Heaven, it's really strange. However, I am well aware that it is not recommended, on the contrary that it is dangerous, especially if you have a bad trip (the experience of a bad trip, which fortunately I have never had, is apparently living in Hell, an impression that it is forever etc.)

In summary, I wonder why in my life it seems to have been beneficial. I know that there are LSD therapies in Switzerland, and it seems to have success in curing certain mental disorders. What do you think?

(I haven't taken LSD for about 10 years, the time of my conversion)

Your personal testimony is appreciated and the dangers of psychedelics are real.

I'd argue that there is a connection to the spiritual world… a connection of dangerous risks.… Ouija boards, Transcendental Meditation, Yoga, EFT, and psychedelics and everything and anything that impairs the will … all carry the risks of being receptive to demonic influence.

Your personal testimony is appreciated and the dangers of psychedelics are real.

I'd argue that there is a connection to the spiritual world… a connection of dangerous risks.… Ouija boards, Transcendental Meditation, Yoga, EFT, and psychedelics all carry the risks of being receptive to demonic influence.

Yes, and remember the devil can appear as an "angel of light". He will attract you with whatever is necessary to get to the ultimate goal (perdition). Not everyone is tempted by pure evil. In fact, the devil knows quite well that for many, a temptation to a vile mortal sin would only spark revulsion. The devil isn't that stupid. (I have to literally give the devil his due here.)

For many Trads, the devil would instead push you to greater "doctrinal purity" unto isolation and sins against charity. He might tempt you to excessive fasting or other spiritual practices. He would *incite you* to attack good Trad priests -- with a good excuse of course. He'd get you to further isolate yourself and end up a home aloner, etc. Then he could "finish you off" years later at his leisure.

But a crude attack like a prostitute's invite? That wouldn't even be tempting to every man, nevermind actually succeeding in causing a mortal sin.

You should follow the Catholic Church's teaching on curious arts, spiritism, etc. as well as the Catholic Church's interpretation of how one can violate the First Commandment.

Drugs (natural OR artificial, God-made or man-made) have NOTHING to do with enhancing our spiritual life, giving us a taste or stronger connection to the spiritual/supernatural world, etc.

Drugs affect your brain in a physical manner, period. Dogs could have the same experience taking LSD, since they also have meat brains. But they don't have immortal souls. Dogs and humans also react similarly to sleeping medication, both can dream, etc.

Drugs are 100% in the domain of the MEAT WORLD (physical body), the natural world.

Drugs, being a 100% physical substance, have no connection themselves to the world of the Supernatural. So they can't help hybrid beings like man (half spiritual, half meat) to access the Supernatural. No one gives what he doesn't have. That is also why the world of silicon (computers) will never taste being human (reason, free will).

Unless you are a New Ager, there is NO connection whatsoever between drugs and the supernatural, spirituality, other dimensions, etc.

I am not a New Ager, rest assured.
I am just sincerely wondering why I experienced all this.
I agree that LSD is simply a chemical molecule that acts in the brain. Yoga is also simply body positions, and yet we say that there is really something spiritual behind it. When King Saul went to consult the pythoness, he used a form of the occult, but yet it was really Samuel who appeared to him.
My experiences were so intense that I came to the conclusion that a perfect Being really exists and that he governs all things.
Did God have used or allowed that by an evil means (LSD) I am directed to him? When I took psychedelics, it was only to find the Truth, so perhaps God had mercy on me because my intention was right and he used this evil means as a path to Him? I am only speculating.

I'm a bit on the fence about the effect of the drug, i.e. as to how it worked and what it did, but it's 100% immoral and illicit in either case, since not only is it grave sin (without proportionately grave justification) to lose control of one's higher faculties, but this type of experience can EASILY lend itself to diabolical intrusion, i.e. Satan masquerading as an angel of light.  Now, those who have reported NDEs (though they must be taken with a huge grain of salt) do in fact report amazing increases in their ability to see and to know things, experiencing ranges of colors and sounds that are beyond what the senses can experience here on earth, so it's possible that the physical brain does impose some constraints on the operation not only of the higher faculties, but even of the lower sensible faculties (i.e. senses) that might be lifted or somehow short-circuited by the drugs, but there's no excuse to mess with such things.

I agree with Matthew that the drugs affect the physical, and that we primarily operate in the higher faculties, but those faculties are also above normal perception and are completely immaterial (not having anything to do with sensible things such as sights, sounds, etc.).  I do believe that our faculties are somewhat limited or constrained by physical matter and are capable of doing much more on their own.  Yet there's no way of knowing that's what went on here, and it's a huge risk that the devil will get involved.

So, for instance, my eyes are junk, but if removed from the defects of my body, I'm sure that I'd be able to "see" (however that works without eyeballs) once separated from my body.  There have been some cases of NDEs where blind people came back and reported in great detail things they saw and could only have seen (and not heard about), and other people who also reported poor vision but then stated they could see amazing (almost microscopic) detail from incredible distances.  So there MAY be something to it, but it's not for us to find out.  If we excel in sanctity and God wills to give us the grace of elevating our prayer to that of infused contemplation (where he acts directly upon our faculties rather than through the mediation of the senses and the physical organs of sense), that's one thing.  But this stuff, the drugs, is to be strictly avoided.

I do believe that there's some distinction between even the intrinsic capabilities of our senses and the capabilities of our typica sense ORGANS.  In other words, when we die, and before we've been rejoined with our bodies at the Resurrection of the Dead, I imagine we'd still be able to "see", albeit lacking the usual organs of sense, i.e. physical eyeballs.  We can only speculated about how that works, but I can't imagine we'd be blind and deaf ... similar to how the ancient Greeks thought of Hades.

Just thinking out loud here.

So, when we see, there are various light waves coming from an object, either reflected or generated by the object itself, and these light waves come in different wavelengths, which then some combination of the eyeball (or organ of sight) and the brain, interpret as different "colors".  Some people are color blind and can't see them all.  Various animals see some wavelengths but not others.  In fact, there are many wavelengths of light that are there but that we cannot see, e.g. infrared, ultraviolet, the different kinds of radiation, etc.  If we had more of these "cones" in our eyeballs, we might see them, and then the brain might interpret them as even different "colors" (which is an interpretation of some intelligibility that allows us to distinguish one from the other).  But, then, I imagine, that the soul (both the higher faculties and the lower sensible faculties ... since there in fact a "sensible part of the soul", in addition to the higher faculties) somehow can sense and "know" (turn into some intelligible -- immaterial -- form) ALL the different wavelengths of light, radiation, etc.  AND it would sense / know about every photon (or wave or whatever) of light being emitted by something, and it would know / hear every soundwave (even if it's tiny and inaudible by our current sense organs for hearing, e.g. the ear), whereas our sense organ currently limits or constrains our ability to hear sounds that are either two "low" in volume, or perhaps blended in with other waves, or too high or low in pitch, etc.  So not only is there light, but sound, and all manner of other sensible / corporeal reality all around us that the sensible parts of our souls would be able to perceive directly when removed from the constraints of our physical sense organs, but we also wouldn't be limited by things such as "distance" from the object, etc.  So, based on these considerations, I believe that in theory, it's theoretically possible that some drug could free us from the constrains of our physical sense organs and provide a more direct and intelligible perception of reality ... though there's no evidence or proof that that is what is happening with these drugs, and that the drugs are simply lifting these constraints vs. creating experiences by directly acting upon our brains, which are the receptors and interpreters of all this perceived sense information.

I think psychadelic drugs can open portals, and even if you have had a "good" experience, God forbids us to go to these interdimensional places. 
Even if you think what you experienced was positive, it has opened your soul to any type of spirit that may have wandered in.  You can never really know what it may have done to depth of your soul until you attempt to expell it.
I always think it is a good idea to have a minor exorcism ( deliverence prayers) by a traditional priest if you can find one who will do it, if you feel "exposed".  They do not need the Bishop's permission to say these prayers. It's part of their minor orders.

I actually agree with what's described in this tweet, even though it's written like a joke (the author is indeed a Christian, however). Humans can become possessed by demons - hence the need for exorcism - and drugs lower our defenses and open ourselves up to demonic possession more easily. There's a reason why some of these pagan societies, those in Meso-America in particular, were so horrendously cruel - they were serving demons. Why? Their priestly classes (and likely much of the laity) consistently took drugs which opened themselves up to demonic possession.