God is a fire that warms and kindles the heart and inward parts. Hence, if we feel in our hearts the cold which comes from the devil - for the devil is cold - let us call on the Lord. He will come to warm our hearts with perfect love, not only for Him but also for our neighbor, and the cold of him who hates the good will flee before the heat of His countenance.
Seraphim of SarovThe reading of the word of God should be performed in solitude, in order that the whole mind of the reader might be plunged into the truths of the Holy Scripture, and that from this he might receive warmth, which in solitude produces tears; from these a man is wholly warmed and is filled with spiritual gifts, which rejoice the mind and heart more than any word.
Seraphim of SarovThe body is a slave, the soul a sovereign, and therefore it is due to Divine mercy when the body is worn out by illness: for thereby the passions are weakened, and a man comes to himself; indeed, bodily illness itself is sometimes caused by the passions.
Seraphim of Sarov