The image above is of the Purushkara Yantra. This is a cosmic man figure from the 18th Century. The cosmic body contains the different levels of being.
Yantras such as this one offer a means of Self-realization in the Hindu tradition. They are used in meditation along with a mantra for Self-realization. The yantra represents the relation between the macrocosm and the microcosm. Through meditation on the yantra, one turns within to discover he cosmos within. The Mundaka Upanishad (8:1) speaks of the cosmic man:
The yantra above is the Secret Kālī Yantra. Kālīis a Hindu goddess. Kali is the force of time. She holds the power of creation and destruction. In the Mahanirvana-tantra, Kāli in the form of sakti is praised by Shiva. The tantra says:
“At the dissolution of things, it is Kāla [Time] Who will devour all, and by reason of this He is called Mahākāla [an epithet of Lord Shiva], and since Thou devourest Mahākāla Himself, it is Thou who art the Supreme Primordial Kālika. Because Thou devourest Kāla, Thou art Kāli, the original form of all things, and because Thou art the Origin of and devourest all things Thou art called the Adya [the Primordial One]. Re-assuming after Dissolution Thine own form, dark and formless, Thou alone remainest as One ineffable and inconceivable. Though having a form, yet art Thou formless; though Thyself without beginning, multiform by the power of Maya, Thou art the Beginning of all, Creatrix, Protectress, and Destructress that Thou art.”