Guruji, please tell us what is Chitta?

Sri Sri Ravi Shankar:

Chitta is like Aakaasha (sky), that which is present everywhere inside us. Consciousness is also known as ChittaChaitanya Shakti (conscious energy). Chiti, Chaitanya, Chitta – just like water, ice and vapor – are all different forms of the same Chitta. When it solidifies, it is called Chitta, when it becomes fluid it is called Chiti.