If we just worry about the big picture, we are powerless. So my secret is to start right away doing whatever little work I can do. I try to give joy to one person in the morning, and remove the suffering of one person in the afternoon. If you and your friends do not despise the small work, a million people will remove a lot of suffering.
Here in time we make holiday because the eternal birth which our loving God bore and bears unceasingly in eternity is now born in time, in human nature. St. Augustine says this birth is always happening. But if it happens not in me, what does it profit me? What matters is that it shall happen in me.