Roux and Reva were shocked when they saw Alu actually put Varog's soul essence into his mouth.
Cultivating with soul essence?
First, because soul essence is very difficult to obtain, cultivating with soul essence is also rare for people to do.
However, that didn't mean there weren't any benefits to cultivating in a way of refining soul essence. In fact, the benefits are quite extraordinary for one's cultivation.
The soul essence may not be something that contains spiritual energy like other heavenly resources. But that is ultimately the essence of one's life. From someone's birth, their experiences, their comprehension, their joys and sorrows, everything is basically stored in the essence of the soul.
When one was refining soul essences, they were basically the same as absorbing one's life. The greatest benefit of doing that is getting enlightened.
