Abstract The Humanistic psychologist Abraham Maslow incurred appalling childhood religious experiences. It would not be until his adulthood years that he would develop an appreciation of religious practices. He would go on to write extensively that religion and science should not be separate practices, and that to treat them as such was to the shortfall of both. Maslow’s concept of self-actualization has gained little research in regard to religion. However, his concept of peak experiences has been the recipient of much psychological research under the guise of mysticism. Utilizing Hood’s Mysticism Scale in research has helped to clarify the distinction between religiosity and spirituality. The current research covered in this chapter promises a more enlightened view of religion and spirituality. Just as Maslow developed an appreciation of religion, as explicit in his writings, the science of religion and spirituality also appears to be moving to a more enlightened vantage.