Many billions of years elapsed between the origin of this world and the first appearance of living beings upon its surface. Thereafter it took an immense time for living creatures to become mature in thought-in the development and perfection of their intellectual faculties; and even from the time men attained maturity up to the present many thousands of years have passed. Through all these vast periods of time the world has undergone constant changes, for it is in a continual state of flux. Even now, many comparatively recent occurrences which appeared for a little while to remain static are seen to have been undergoing changes from moment to moment. One may wonder what it is that remains immutable when every sort of material and mental phenomenon seems to be invariably subject to the process of change, of mutability. All of them are forever arising, developing and passing away. In the vortex of all these changes it is Truth alone which remains constant and unalterable-in other words, the truth of righteousness (Dharma) and its accompanying beneficial results, and the truth of evil action and its accompanying harmful results. A good cause produces a good result, a bad cause a bad result. Good or bad, beneficial or harmful, every result necessarily has a cause. This principle alone is abiding, immutable and constant. It was so before man entered the world, in the early period of his existence, in the present age, and it will be so in all ages to come.

All of us desire happiness and the avoidance of suffering and of everything else that is unpleasant.