This is virtue: that in his mind a man should be unbusied with the world. The heart cannot become tranquil and be without imaginings as long as the senses are active. Outside of the desert [[and the wilderness]] the bodily passions do not abate, nor do evil thoughts cease.
Until the soul becomes drunk with faith in God by receiving a perception of faith’s power, she ((that is, the soul, which Saint Isaac always refers to in the feminine gender as being a composite part of the Bride of Christ; 2 Corinthians 11:2; Revelation 19:7)) can neither heal the malady of the senses, nor be able forcefully to tread visible matter underfoot, which is the barrier to things that are within and unperceived.

St Isaac the Syrian, Homily 1