The word 'tatva' translates as element, something which is created and not the creator. Everything that is created is composed of 16 tatvas. The first five–prithvi (earth), jal (water), agni (fire), vayu (air) and akash (ether)—pertain to the Bhuloka or earth. The sixth element is the Shiv tatva, which corresponds to the agya chakra, located at the centre of the forehead. Between the visshudhhi and agya, there are 11 more tatvas and yet the Shiv tatva is called the sixth tatva because Shiv is adi, anadi, anant, akhand... which is beyond the comprehension of buddhi. A normal human brain functions on 7-8 per cent efficiency, which is enough for experiences of physical world, but to experience Shiv tatva, activation of higher senses is required. There are three knots in the body—Brahm Granthi, Vishnu Granthi and Rudra Ganthi. It is easiest to open the Brahma Granthi; Vishnu Granthi also opens up relatively easily, but opening the Rudra Granthi is extremely difficult. Till it ope...