Xasha's body bath in mysterious energy that beamed onto him as a light that only he could see or feel.
The energy was like an elixir that brought out one's hidden potential. Xasha took full advantage of that as he revved up the Deed of Thorough Comprehension to further improve his mind. He used the energy to facilitate greater synchronization and cohesion between his consciousness, perception, Comprehension, and cognitive ability.
It was something similar to Adara's infinite Consciousness. He tried to create a scenario where they all operated at the same frequency. Similar to creating an intent but without the 3rd dantian to house it. He gained profound results while using the superficial collaterals as a conduit to connect the different facets of the mind.