Aye, even St. Paul said the forces of iniquity were already at work. But you haven't answered my question.
I did. The light is rejected. It's rejected by us when we sin, and we all do, or even are never cured of some vice or other which plagues us. Even finding fault in ourselves where there is none would be one such. But I doubt that's such a temptation in these times. We tend to react with some anger when we're pushed, hemmed in, shoved, etc. Sometimes we might not feel guilt if it's a matter of defense. Most of the time we ought, and will, feel guilt. We have to reflect and consider, how much of the light do we reject as inconvenient, or too far away we think?
There is the Word. There is that which seeks a substitute, or to mostly worship itself - the darkness. Humility vs pride. Humility says God's Will be done. Pride says God's Will is a point of view that is also brought to the table, as it were, and perhaps will ultimately not be considered.
Failure. Even the Saints failed. And we fail.
So the Church is the light. The graces of The Sacraments are a cure. The darkness fights against it. Our own darkness fights against what is right and Good. But if we remember some humility, and remember Who is God, and that we must repent and use our will to conform to His Will, if we stand with Him in these times and not against, we have our opportunity to stand with Him in the indescribable life to come, rather than be shut out in indescribable torment.