In Roland's soul world, the soul space that protected his core had been crushed into pieces to force back the Life Goddess.
There was only a core in his soul, and he suffered from the corrosion of external energy all the time. It was quite painful.
It felt just like skinning someone, throwing away all his fat, and leaving just the veins, muscles, and bones behind.
The pain of a person without skin was very hard to describe.
Most people who lost their skin wanted to kill themselves even if they were rescued in the end.
Roland's situation was similar. He sacrificed all his soul space in exchange for a chance of escape.
That seemed to be a reckless decision, but it was the best solution at the time.
It would've been impossible to survive after the strongest goddess invaded his soul world if he didn't have the courage to die with the enemy.
Everything was easier after he escaped.