Yantra Mantra Tantra  and Occult Science Summary: He has fully explained intricacies, procedures, bottlenecks, complications alongiwth warnings and cautions where needed. The readers should completely follow the given directions and cautions so as to derive the desired aims. Description: Yantra, Mantra, Tantra and Occult Science's mantra is a common factor in Yantra and Tantra. The Hindus, Jains, Muslims etc. practice the said disciplines in one form or the other. The subject is quite tedious and cumbersome, but the author has presented it in a simple and easy-to-understand method.