From Evolution’s End by Joseph Chilton Pearce:
Saints and sages have always claimed that the true seat of the mind is in the heart. In 1932 an American Indian medicine man told Carl Jung that white men, with their wrinkled faces and constant anger, were insane and killed so wantonly because they thought in their heads. Whole people, he explained, think in their hearts.
It’s not true that our left brains are “smarter.” The mind likes to look for complexity, which is why it perpetuates so much stress. Heart intelligence looks for simplicity and ease.