As Li Tian became conscious, he felt the heat flow coming from his back, and the transpiration of energy made his whole body boil.
But he's still awake, only consciously.
He didn't know how he was doing, who put the rolling energy of his body into him. The only thing he could feel was that the powerful energy was constantly moving through his body and then into his veins.
In this way, Li Tian feels the steaming energy, because the vast energy makes his whole body very comfortable.
Finally, I don't know how long it took. The mysterious grey-robed old man slowly moved his palm away from Li Tian's hindmost...