Fascinating quote from Descartes. Thanks so much for sharing it. It reminds me in part of the Spanish play by Calderon de la Barca from 1635: La vida es sueno. “La vida es sueno y todos los suenos suenos son.” “Life is a dream and all dreams are dreams.” What a challenge we have of trying to determine what is “real”. And especially for those whose experience is not totally in the realm of “consensual reality.” Art and music and myth do help enormously in our quest for meaning and self-understanding.