Raze could feel the energy flowing through him from Belil. He had already taken in a lot of energy; his dantian had felt full for a while now, and it was spreading everywhere else in his body.
His dantian almost felt overstretched, forcing it to expand, and it was painful, like a stomachache. He was sure that this wouldn't just be it.
There was more pain to come, judging by how his body would reconstruct itself, according to Belil's words. It wasn't normal for a body to contain this much power without going through real experiences and growth on its own.
His body was being forced to go through these experiences, and it might have been where the excess energy was going.
Thankfully, with Raze's energy filling, the wounds on his body from before were now healing, and his Blazer, as always, was doing its trick, taking care of his body nicely.