Those who aim at ascending with the body to heaven, need violence indeed and constant suffering especially in the early stages of their renunciation, until our pleasure-loving dispositions and unfeeling hearts attain to love of God and chastity by visible sorrow.

A great toil, very great indeed, with much unseen suffering, especially for those who live carelessly, until by simplicity, deep angerlessness and diligence, we make our mind, which is a greedy kitchen dog addicted to barking, a lover of chastity and watchfulness.

But let us who are weak and passionate have the courage to offer our infirmity and natural weakness to Christ with unhesitating faith, and confess it to Him; and we shall be certain to obtain His help, even beyond our merit, if only we unceasingly go right down to the depth of humility.

[John Climacus, Ladder of Divine Ascent]