It is encyclopaedic in nature; it is verlly an ocean (as the title suggests) of mantras. Now in Tantrik sadhana, the mantras are of great significance, for they are sufficient means of visualizing the gods. Indeed the mantras are the "body" of trhe gods. There is thus a correspondence between the mantra (formulation), murti (Visulization), and the tantra (actualization). This correspondence is the theme of this work. Exceedingly valuable for the spiritual practitioners and extremely popular among them in the North as well as in the South.