One brother complained to the Monk Ambrose of Optina that during prayer there were many different thoughts. The elder said to this: “A man was driving through the market; there is a crowd of people around him, talk, noise - and he still rides on his horse: but, but! nono! - so little by little, little by little, I drove through the entire bazaar. So you too, no matter what your thoughts say, do all your work: pray!”