“The substance of the world is as nothing; everywhere and in all things is the Life-giving Spirit of God higher than anything…If you yourself are free from attachments to material things, and give yourself to prayer and fasting, then even in you the spirit will as though swallow up the flesh, and you will become spiritual and will contemplate God the Spirit everywhere in nature; whilst, on the contrary, those who are attached to earthly things, especially to food and drink, to money, become “sensual, having not the Spirit” (Jude 1: 19). And in everything they only see the flesh, not contemplating the spirit, and even rejecting the spiritual side of things.”
Saint John Kronstadt
My Life in Christ