Gravis looked at Siral.
Right now, Siral was missing his will. It had been completely ground to dust.
It was one of the cruelest ways to die. Dying to Samsara meant that one had been under so much torture that their entire being just completely shut down.
Gravis analyzed Siral.
Sadly, Gravis couldn't see much.
Why?
Because Gravis only knew the Law of Sentience. Gravis could look at the will and personality of a person without problems and use the will to glean information.
However, the actual memories were in the Spirit of the person.
Gravis didn't have the Major Law of Life. If he wanted to go through the memories of a person, he would have to know the Major Law of Life.
A person with a will couldn't have their memories read by someone that only knew the Law of Life. If someone had a will, one would need the Law of Sentient Life, which was a combination of the Law of Life and the Law of Sentience.