But let thine apparel be plain, not for adornment, but for necessary conversing: not to minister to thy vanity, but to keep thee warm in winter, and to hide the unseemliness of the body: lest under the pretence of hiding the unseemliness, thou fall under another kind of unseemliness by thy extravagant dress.
Blessed are the pure in heart, for they shall see God. Everything we do, our every objective, must be undertaken for the sake of this purity of heart. This is why we take on loneliness, fasting, vigils, work, nakedness. For this we must practice the reading of the Scripture, together with all the other virtuous activities, and we do so to trap and to hold our hearts free of the harm of every dangerous passion and in order to rise step by step to the high point of love.
We see the water of a river flowing uninterruptedly and passing away, and all that floats on its surface, rubbish or beams of trees, all pass by. Christian! So does our life. . . I was an infant, and that time has gone. I was an adolescent, and that too has passed. I was a young man, and that too is far behind me. The strong and mature man that I was is no more. My hair turns white, I succumb to age, but that too passes; I approach the end and will go the way of all flesh. I was born in order to die. I die that I may live. Remember me, O Lord, in Thy Kingdom!
How can one say that a man has attained purity? - When he sees all men as being good, and when none appears to him to be unclean and defiled - then he is indeed pure in heart.