Will Hindu's "Raja Yoga" lead to "an almost superhuman degree of self-consciousness and masterful control?"?

This classical school of yoga is one of six which were expounded by Sage Patanjali, the original author of the Yoga Sutras. Raja Yoga focuses primarily on the development of the mind through meditation. Raja Yoga is sometimes termed ‘Astanga Yoga’ (not to be mistaken for ‘Ashtanga’), referring to the eightfold path to spiritual liberation. Those aspiring to perform Raja Yoga would have to prepare themselves for its rigorous meditative practices by first physically purifying themselves through Hatha Yoga. ... more