1963, they gave Leary and his associates access to a sprawling 64-room mansion on an estate in Millbrook, New York, where they continued their psychedelic sessions. Peggy directed the International Federation for Internal Freedom (IFIF)'s New York branch, and Billy rented the estate to IFIF. Leary and Alpert set up a communal group with former Psilocybin Project members at the Hitchcock Estate (commonly known as "Millbrook"). One of the IFIF's founding board members, Paul Lee, a Harvard theologian, a participant at Marsh Chapel and a member of the Leary circle, said of the group's formation: The IFIF was reconstituted as the Castalia Foundation after the intellectual colony in Hermann Hesse's 1943 novel The Glass Bead Game. The Castalia group's journal was the Psychedelic Review. The core group at Millbrook wanted to cultivate the divinity within each person and regularly joined LSD sessions facilitated by Leary. The Castalia Foundation also hosted non-drug weekend retreats for meditation, yoga, and group therapy. Leary later wrote: We saw ourselves as anthropologists from the 21st century inhabiting a time module set somewhere in the dark ages of the 1960s. On this space colony we were attempting to create a new paganism and a new dedication to life as art. Lucy Sante of The New York Times later described the Millbrook estate as: the headquarters of Leary and gang for the better part of five years, a period filled with endless parties, epiphanies and breakdowns, emotional dramas of all sizes, and numerous raids and arrests, many of them on flimsy charges concocted by the local assistant district attorney, G. Gordon Liddy. Others contest the characterization of Millbrook as a party house. In The Electric Kool-Aid Acid Test, Tom Wolfe portrays Leary as using psychedelics only for research, not recreation. When Ken Kesey's Merry Pranksters visited the estate, they received a frosty reception. Leary had the flu and did not play host. After a private meeting with Kesey and Ken Babbs in his room, he promised to remain an ally in the years ahead. In 1964, Leary, Alpert, and Ralph Metzner coauthored The Psychedelic Experience, based on the Tibetan Book of the Dead. In it, they wrote: A psychedelic experience is a journey to new realms of consciousness. The scope and content of the experience is limitless, but its characteristic features are the transcendence of verbal concepts, of spacetime dimensions, and of the ego or identity. Such