Most of reality is invisible. This edition of Thought-Forms from 1986 is falling apart as I read. There are other editions floating around in space, with other illustrations and modern introductions. These books change form over time as thoughts change. Thoughts come together in mind and form books that travel in time and may, considering the quality of their binding, separate and fall apart like the leaves from the trees from which they originated, yet now imprinted with our individual and collective thought forms. Read on, fellow travelers.