The native artist's attempt at the more formalised Yantra is akin to this symbol in Tantrik art. The triangular yoni is enclosed in the orb with lotus petals around. The central triangle is surrounded by six more triangle forming a star. Five layers of petals form the encircling pattern. The seed mantra is written on the petals. Mantra and Yantra are very much interconnected. Thought is expressed in subtle form as a Mantra, and the same thought is expressed in pictorial form as a Yantra. The surrounding space of the cosmos is symbolised in broken swastikas with the Sanskrit letters written on it.
The artist has given the background colour red, a colour of passion and energy. The artists have not only painted this geometric diagram, they have also explained how this can be used to manipulate someone's psyche or thoughts and have control over him. Tantric ritual and belief often uses such symbols.
This description by Kiranjyot.