The methods appear beneath the Tantra-Mantra kriya action. Each individual trick purely relies on two points, 1st, which strategy has become adopted for it and secondly, through which language which mantra is utilized for it. Yantra is absolutely nothing though the diagrammatically pictorial representation of mathematical technique of mantra https://www.youtube.com/watch?v=sM2pPGc3tMA&t=6s