The soul must be supplied with the word of God.

The soul must be supplied with the word of God: for the word of God, as Gregory the Theologian says, is the bread of the angels, on which souls that hunger for God feed. All the more should be practiced in reading the New Testament and the Psalter, which should be done by the worthy one. From this comes enlightenment in the mind, which is changed by the Divine change.
One must educate oneself in such a way that the mind, as it were, swims in the law of the Lord, by which, being guided, one must also arrange one's life.
It is very useful to study the word of God in solitude and to read the entire Bible intelligently. For one such exercise, apart from other good deeds, the Lord will not leave a person with His mercy, but will fill him with the gift of understanding.
When a person supplies his soul with the word of God, then he is filled with the understanding of what is good and what is evil.
The reading of the word of God must be done in solitude, so that the whole mind of the reader is deepened into the truths of the Holy Scriptures and receives warmth from this into himself, which in solitude produces tears; From these, a person warms up all over and is filled with spiritual gifts that delight the mind and heart more than any word. - St. Seraphim of Sarov