St. John of Kronstadt: . . . Recognize that the Holy Spirit stands in the same relation to your soul as air stands in relation to your body.

“Everything that breathes, breathes by air and cannot live without air; similarly all reasonable free creatures live by the Holy Spirit, as though by air, and cannot live without Him. “Every soul is quickened by the Holy Spirit.” Recognize that the Holy Spirit stands in the same relation to your soul as air stands in relation to your body.”

+ St. John of Kronstadt, My Life in Christ