Gautama Buddha was an ancient philosopher and spiritual teacher whose teachings and meditation practices form the basis of Buddhism.
Philip Jakob Spener was a prominent German theologian and Lutheran minister who significantly influenced the rise of Pietism in the late 17th century.
John Nelson Darby, an Irish Anglican clergyman, was a prominent leader in the Plymouth Brethren movement, known for his influential biblical teachings and dispensationalist theology.
Chico Xavier was a renowned Brazilian medium, psychic, and philanthropist who channeled the spirits of deceased individuals, producing over 400 books on spiritualism and philosophy.