This idea has been expressed in a few words by Patanjali, the great Hindu evolutionist who lived long before the Christian era.
He has expertly mastered the various pranayamas 7-1 of the ancient eightfold yoga outlined by Patanjali.
Patanjali's date is unknown, though a number of scholars place him in the second century B.C.
The mystical school of Yogis was established by Patanjali, the founder of one of the six philosophical systems of ancient India.
(Samdhi is defined by Patanjali, as the forgetting of one's self in the object of his meditation).
