It is notable that show brings into life the age old traditions of ancient India and treating any sort of illness via yog power was very common then. Even today yoga is getting popular again and people are looking up to it for various aids.
Well, coming back to Mahadev, sources say that the time has come when Parvati will get back her memory and this will happen due to Jalandhar, the look alike of Shiv who at present is ruling the devlok. He under the influence of Indra, will abduct Parvati assuming that Mahadev will lose all his powers once he kidnaps Parvati.
This will further lead into a big war and Parvati out of anger will take the avatar of Aadi Shakti. This will cause the end of Jalandhar and Parvati will regain her memory.