Q: I think or the mind thinks ?
A: If you think you think you do, If you do not think you think, you do not.
Q: How come?
A: Both your I and your mind are mind made.
The search for immortality is a recurrent theme in Jnaana kaand of Vedas, the Upanishads. Similarly I sometimes that feel 'mortality' and all that ensues from it is the recurrent theme of medieval Indian saint poetry of the Bhakti age (I know this is only approximately true). Perhaps mrityorma amrutam gamaya subtly means that mortality has be to understood in its depth before one enters in the realm of immortality.
Here is a folk song from the state of Chhatisgarh. Its from the movie, Peepli live.
You can find the lyrics and its meaning on the web. Even though lyrics have nothing new still when the poet says "ye dunia maya ke re bande jivanmukti kar le" somehow it sounds much better than the Champion's rant 'satsangatve nisangatvam...nishchaltattve jivan mukti"