Do not be alone by yourself, lest you be seen carried off by the world who destroys souls, or succumb to one disease after the other and so die spiritually, or, as you succumb, you attain to that woe (cf. Eccles. 4:10). He who gives himself in the hand of a good teacher will have no such worries, but will live without anxiety and be saved in Christ Jesus our Lord, to whom be glory forever. Amen.

(Saint Symeon the New Theologian)