"If the spirit of man belonged to the elemental existence, the eye could see it, the ear hear it, the hand touch. As long as these five senses cannot perceive it, the proof is unquestioned that it does not belong to the elemental (material) world." Promulgation of Universal Peace Page 302 . (43:2)

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The Worlds of God
U.S.Baha'i National Ref Library Committee