Death [1]
Damien spent an untold period falling through the Demon Abyss.
He stopped counting the hours before the first day even ended, and after that, he willingly closed off his perception so he wouldn't feel its absence.
This was the best way to fall.
Damien was confident in the strength of his body and regeneration, so even if he hit flat ground from an illogical height, he knew he would survive.
The only thing he regretted was the fact that he wouldn't be able to sense what was going on around him, feeling as if he would miss out on several secrets because of this choice.
However, he was wrong about that.
When he closed off his senses and embraced the numbing effect of the abyss, he found himself more connected to it than ever.
Perhaps that was the key from the start.