If we are truly sanctified to the Lord, in other words, if we love God with all our hearts, our course as Christians will be a consistent and stable one. Our rule of action will be the will of God; our principle of action will be the love of God. And as the will of God is fixed, and is made known to us in various ways, especially in his holy Word, we shall endeavor to fulfill it at all times humbly and faithfully, without regard to those temporary and changing feelings which too often perplex the religious life.
In the state of mind which has been spoken of, we shall not fail of any consolation which is needful for us. It belongs to the very nature of desire, that, when the desire is gratified, we are more or less happy. Accordingly in exercising love to God, the leading element of which is desire, and in doing and suffering his holy will, in accordance with such desire, we cannot be otherwise than happy in a considerable degree. If we seek joy or happiness as an ultimate object, we cannot fail, on religious principles, to miss of it. If, under the promptings of love, we seek merely to do and suffer the will of God, we shall certainly, except in those cases, where God, by a special act of sovereignty, withdraws consolation in order to try our faith, possess all that consolation, which will be needful. And in the case which has just been mentioned, if our faith, still trusting in the beloved object, sustains the terrible shock of apparent desertion, (as when our Savior exclaimed, "My God, My God, why hast thou forsaken me?") we shall soon find abundant consolation returning.
— edited from The Interior or Hidden Life (1844) Part 1, Chapter 14.