Tattva is an inseparable part of Hindu philosophy with various schools of thought define it in their own way. The Samkhya School of Hindu Philosophy, which was co-founded by Kapila, identifies 24 tattvas; however, according to Saivism, there are 36.
The five basic tattvas are earth, water, fire, air and sky. Each have corresponding symbols and colors. They also have corresponding chakras: earth is associated with muladhara, water is associated with svadisthana, fire is associated with manipura , air with anahata and sky with visuddha.
The five tattvas are present everywhere and having them balanced in the body is essential to one's health. Practicing yoga is the best way to balance the five tattvas, gaining higher levels of consciousness and spiritual fulfilment.