Do now what you would do then
I came across this passage in Imitation of Christ today:
One day when a certain man who wavered often and anxiously between hope
and fear was struck with sadness, he knelt in humble
prayer before the altar of a church. While meditating on these
things, he said: “Oh if I but knew whether I should persevere
to the end!” Instantly he heard within the divine answer: “If you
knew this, what would you do? Do now what you would do then
and you will be quite secure.”
I have to say, that divine answer sounds a lot like the answers I get when I point out how much easier things would be for me if things were much easier for me.