On learning that her father, Howard Thrasher, once photographed Aldous Huxley’s hands, Symons set out to discover how the two men’s paths had crossed. Here she reveals what she learned from conversations with her father and from a cache of letters: how Huxley’s eclectic circle undertook pioneering experiments into the healing potential of psychedelic drugs, because of their belief in the importance of visionary, mystical experience and their hope that this research would benefit humankind.