The power to change.

“…the most effectual way of withdrawing the mind from one object, is not by turning it away (to nothing), but by presenting to its regards another object still more alluring…The love of the world cannot be expunged by a mere demonstration of the world’s worthlessness. But may it not be supplanted by the love of that which is more worthy than itself? The heart cannot be prevailed upon to part with the world, by a simple act of resignation. But may not the heart be prevailed upon to admit into its preference another, who shall subordinate the world, and bring it down from its wonted ascendancy? …In a word, if the way to disengage the heart from the positive love of one great and ascendant object, is to fasten it in positive love to another, then it is not by exposing the worthlessness of the former, but by addressing to the mental eye the worth and excellence of the latter, that all old things are to be done away and all things are to become new… the only way to dispossess [the heart] of an old affection, is by the expulsive power of a new one.”
—Thomas Chalmers, The Expulsive Power of a New Affection,” (sermon date unknown), 2-8.