Saint Nikolai Velimirovič
“Guard your heart!” These words were spoken in the past by experienced ascetics. Father John of Kronstadt says the same thing in our days: “The heart is refined, spiritual and heavenly by nature; guard it. Do not overburden it, do not make it earthly; be temperate to the utmost in food and drink and, in general, in bodily pleasures. The heart is the temple of God. `If anyone destroys God’s temple, God will destroy that person’ (1 Corinthians 3:17).” Spiritual experience in ancient times and spiritual experience in our time is identical, under the condition that the confession of faith is identical. Heavenly knowledge, to which the ascetics of old arrived, does not differ from the heavenly knowledge to which the ascetics of today arrive. For as Christ is the same today and tomorrow so it is the same with human nature. What is important: the human heart is the same; his thirst, and his hunger, is the same; and nothing is able to satisfy him but the glory, power and riches of God.