According to tantra, the microcosmos and macrocosmos are mirror reflections of each other. The cornerstone of astrology ‘The Emerald Tablet’, written by its mythic founder Hermes states: “As above so below.” We can’t help noticing the similarity in the configuration of solar systems and atomic structure.

Mantras are considered to be divine rhymes composed by the ancient Indian saints in the divine language of Sanskrit. When recited properly they protect human from different malefic effects of other evil elements. Similarly mantras corresponding to different planets when recited properly is considered to protect the person from the bad effect of that planet.

Yantra is an etching, a diagram, etched on a foil, which symobilises different forms of divinity meant for different purposes. It can also be described as a mystical or astronomical diagram used as an amulet or charm. Adi Sankaracharya's Saundarya Lahiri is one such authoritative work on yantras. Literally speaking, Yantra means: "to control, curb, bind or influence".