[6] " They therefore who were come together, asked him, saying: Lord, wilt thou at this time restore again the kingdom to Israel? [7] But he said to them: It is not for you to know the times or moments, which the Father hath put in his own power: [8] But you shall receive the power of the Holy Ghost coming upon you, and you shall be witnesses unto me in Jerusalem, and in all Judea, and Samaria, and even to the uttermost part of the earth.
We cannot be witness unto Christ hidden in our homes. We must be in the world, yet not of it. Although there are reclusive religious such as monks who may do that, other Catholics in different state of life, need to be in the world, right in front line, facing it, conquering it and winning souls over Our Lord & Our Lady. We are supposed to be the walking light of this world of darkness, preach the Gospel to our neighbor, and extend as far as possible the kingdom of Christ Jesus.