“Holy Communion is not a simple act, but presupposes a whole ascetic method. Holy Communion helps a person in accordance with his spiritual state. At the stage of purification, it helps him to be purified. When he is at the stage of illumination, it strengthens him to remain in this state. And at the stage of deification, it preserves him and increases this theoria” (Met. Hierotheos, The illness and cure of the soul, pp. 188-189).