What is the spirit world explained?

Always there emerges the same idea of a world like ours, a world where all our latent capabilities and all our hidden ambitions have free and untrammelled opportunities. In all there is the same talk of solid ground, of familiar flowers and animals, of comfortable homes, of human pleasures, of congenial occupations—all very different to the vague and uncomfortable heaven of the Churches.

—Sir Arthur Conan Doyle