He did, however, spend years studying and trying to practice the tenets of Zen Buddhism. Reflecting years later on his spiritual feelings, he said that religion was at its best when it emphasized spiritual experiences rather than received dogma. “The juice goes out of Christianity when it becomes too based on faith rather than on living like Jesus or seeing the world as Jesus saw it,” he told me. “I think different religions are different doors to the same house. Sometimes I think the house exists, and sometimes I don’t. It’s the great mystery.”