Spirituality in Brave New World is a mix of Christianity, the tribal beliefs of Native Americans, a non-denominational interest in the soul, a spiritual unity with the natural world, and a frenzied, orgiastic parody of religious rites. One character believes his spiritual life is deepened through self-mutilation. But in the mind of the powerful world leaders, religion simply isn't needed in a world of science and machines. Comfort comes in a bottle, morality is taught in sleep-session brainwashing. In the world leaders' minds, God is obsolete.
Brave New World argues that distinctions between one type of religion or another are frivolous, because, at the end of the day, all religions serve the same purpose: pacification.
Religion is mocked in Brave New World as a less scientific form of hypnopaedia.