Afraid of one’s shadow…

But whoever is without the fear of God is often afraid of his own shadow. Fearfulness is the daughter of unbelief. A proud soul is the slave of fear; hoping in itself, in comes to such a state that it is startled by a small noise, and is afraid of the dark.
–Saint John Climacus (c. 525-606)

Food and drink…

For the good Creator made all things good and the Maker of the universe is one, Who made the heaven and the earth, the sea and all that is in them. Of which whatever is granted to man for food and drink, is holy and clean after its kind. But if it is taken with immoderate greed, it is the excess that disgraces the eaters and drinkers, not the nature of the food or drink that defiles them. For all things, as the Apostle says, are clean to the clean. But to the defiled and unbelieving nothing is clean, but their mind and conscience is defiled.
–Saint Leo the Great (c. 400-461)

Any hope of salvation…

If you have any hope of salvation; if you have the least thought of God, or any desire for good things to come; if you have any fear of the chastisements reserved for the impenitent, awake without delay, lift up your eyes to heaven, come to your senses, cease from your wickedness, shake off the stupor that enwraps you, make a stand against the foe who has struck you down. Make an effort to rise from the ground. Remember the good Shepherd who will follow and rescue you.
–Saint Basil the Great (330-379)

Prepare your heart…

Christ will come to you offering His consolation, if you prepare a fit dwelling for Him in your heart, whose beauty and glory, wherein He takes delight, are all from within. His visits with the inward man are frequent, His communion sweet and full of consolation, His peace great, and His intimacy wonderful indeed. Therefore, faithful soul, prepare your heart for this Bridegroom that He may come and dwell within you.
–Thomas à Kempis (1380-1471)