Saint Hesychius of Jerusalem writes: "There is but one task that we must hold before us and must always perform in the same manner---to call on Jesus Christ, our Lord, entreating Him with a burning heart that He would grant us to partake of and to taste the blessings of His Holy Name. For constancy is the mother of habit for both virtue and vice, and habit eventually takes over as second nature." A taste of heaven is not yet habit. But such a taste creates the desire for virtue.