The verse starts with Trimbak form of Lord Shiva. Trimbak means the three eyes meaning Bramha, Vishnu, Mahesh is a symbol of eye and the straight meaning of Trimbak is the conversant about the three places trimbkeshwar. To achieve stability worshiping and meditating Shri Trimbakeshwar God is recommended, but for this one needs prosperous body and if you possess tranquil and pure mind then it will reflect a stronger body. Otherwise harmful ingredients gets accumulated in body resulting in adverse effects on the body, if we remove this harmful ingredient from our body then positively body will produce nontoxic ingredient. But for this it is important to have complete control on organs. To get rid of all diseases and to keep it neutral Lord Shiva burnt the cupid.
One who recites Mahamritunjay mantra daily will become immortal and all his diseases will be eradicated. Long Lived Markanda Rishi mentioned his mythological tale the nobility of the Mahamritunjay Mantra. Also mentioned the story of Sanat Rishi who blessed the child long life. But after which he learnt that the life of child is only ten years. Kala (God of Time) has his own speed.