The Unchangeable Basis of Christian Joy

Holy joy, being founded in the perception of the character, attributes, and will of God, is not necessarily liable to changes. He, who rejoices in God to-day, having a correct view of his character and will, will never find good reason to do otherwise than rejoice in that character and will, in all coming time. And simply because God, in his character and his will, is always the same. In all afflictions and trials of whatever nature, there will still remain the basis of a serene and pure joy in the depths of the heart. But natural joy, being founded upon natural objects, which are frail, uncertain, and full of imperfection, necessarily partakes of the uncertainty and imperfect nature of its causes. And hence it is said in the portion of Scripture already referred to. "They on the rock are they, which, when they hear, receive the word with JOY, [that is, with natural joy, as we are probably to understand it.] And these have no root, which for a while believe, and in time of temptation, fall away." So that holy or spiritual joy may be compared to the sun, which always shines with its pure and beautiful light, even when wrapped in clouds; but natural joy is like a meteor, gleaming for a moment and then extinguished; rekindled again after a time, but destined soon and suddenly to sink in still greater darkness. 

— The Interior or Hidden Life (1844) Part 1, Chapter 15.

True Spiritual Joy Brings Tranquility of Mind

Natural joy, especially when it is strong, to perplex the action of the perceptive and discriminating or judging powers. This is true of the natural emotions generally, when they are in an excited state. Any considerable agitation in that portion of our sensitive nature which is termed the Emotions, is commonly understood to be unfavorable to correct perception and judgment. A man, for instance, who is agitated with emotions of displeasure, of jealousy, or of fear, will find it difficult, while remaining, in such state of agitation, to go through successfully with an intricate train of mathematical or other reasoning. And the result will be the same, if he is considerably agitated with emotions of natural pleasure or joy. But true spiritual joy, when undisturbed by unfavorable influences from the physical system and unmixed with natural joy, leaves the mind tranquil, and the perceptive and discriminating faculties clear and effective in the highest degree. And these views seem to be confirmed by a consideration of the state of holy beings. All holy beings, there can be no doubt, experience true joy of heart; but in our reflections on their mental character and operations, it is certain, that we never conceive of them as having their minds clouded and their perceptive powers blunted by excessive emotion. The natural feelings, which are regulated with difficulty, continually run into excess; but this is never the case with those truly religious or gracious feelings, which are really inspired by the Holy Ghost. And, therefore, when it said of the disciples on a certain occasion, (Luke 24: 41,) that they "believed not for JOY," it is probable, that they experienced an excitement and confusion of mind, resulting from a mixture of natural joy with emotions of an holy kind.

— The Interior or Hidden Life (1844) Part 1, Chapter 15.

Natural Joy vs. Spiritual Joy

Natural joy and spiritual joy are different in their origin. Natural joy, which is sometimes denominated "the joy of the world," arises from natural causes; from physical or worldly good; from health, property, worldly influence, the indulgences of sense; from such causes, in a word, as we might suppose to exist and to produce joy within us, if we had no perception of a God and no knowledge of religion. Spiritual or gracious joy, which is spiritual or gracious in its origin, arises from the knowledge of spiritual objects, from the discharge of spiritual or religious duties, and from the inspiring agency of the Holy Ghost. And hence it is sometimes denominated the "joy of the Holy Ghost."

Again, natural joy, arising from natural principles, and unchecked and unregulated by gracious influences, has oftentimes a very powerful effect upon the physical system. And it is possible and even probable, that this may sometimes be the case with true spiritual or gracious joy; especially when the emotion is strong and immediately successive to a painfully depressed and suffering state of mind. And it is not unreasonable to suppose, that, in some cases, when powerful physical results are found to exist, that there may be a union or combination of natural and gracious emotion. But it is nevertheless true, that the natural tendency of spiritual joy, IN ITSELF CONSIDERED, and independently of any peculiar circumstances, is, in a remarkable degree, and much more so than that of mere natural joy, to produce a tranquilizing effect upon the mind and through the mind upon the physical system, and to promote soundness and regularity of action in both.

— The Interior or Hidden Life (1844) Part 1, Chapter 15.