Consciousness is the ultimate Reality; compared with it, all else is illusion. - Harold W. Percival

This book was dictated to Benoni B. Gattell at intervals between the years 1912 and 1932. Since then it has been worked over again and again. Now, in 1946, there are few pages that have not been at least slightly changed.

A thought has no size in the physical sense but is vast as compared to the physical acts and objects into which it is later precipitated. The power of a thought is enormous and superior to all the successive physical acts, objects, and events that body forth its energy. A thought often endures for a time much greater than the whole life of the man who thought it.

From November of 1892 I passed through astonishing and crucial experiences, following which, in the spring of 1893, there occurred the most extraordinary event of my life. I had crossed 14th Street at 4th Avenue, in New York City. Cars and people were hurrying by. While stepping up to the northeast corner curbstone, Light, greater than that of myriads of suns opened in the center of my head. In that instant or point, eternities were apprehended. There was no time. Distance and dimensions were not in evidence.