Creation of Immortal Seal was a very hard, complicated and extremely painful process, something that tested not just strength but the very core of one's existence.
The pain it caused was something that a normal soul or person can't withstand, as it directly affects the will itself.
But I am not a normal person and the things I have faced and experienced, along with the pain I have withstood will be my foundation to withstand the pain.....that I will now face....
Ash knew that the pain he would be facing was far more sensitive and profound than anything he had experienced before, because will power was related to the soul, and the pain caused to the soul was extremely intense. Even though Ash had experienced injuries and had felt soul pain before, the thing he was going to experience now was beyond all that, though he had no idea about it.
That pain was also the reason why many people fail in forming their Immortal Seals and die prematurely, unable to endure it till the end.
