From Becoming Fire: Through the Year with the Desert Fathers and Mothers
Soften your native rudeness
Pray first for the gift of tears so that by means of sorrow you may soften your native rudeness. Then having confessed your sins to the Lord, you will obtain pardon for them.
Take off your shoes
If Moses, when he attempted to draw near the burning bush, was prohibited from doing so until he removed the shoes from his feet, (Exodus 3:5), how should you not free yourself of every thought colored by passion, seeing that you wish to see the One who is beyond every thought and perception?