Board Thread:General Discussion/@comment-31072410-20191003120002/@comment-26907577-20191003130138

...no. Generally, what?
 * 1) When a human dies naturally, their SOUL persists. But the fusion of Chara and Asriel died violently. Were killed. In case you've never died in the game, being killed does destroy your SOUL.
 * 2) If Flowey still had Chara's SOUL (which he didn't; there are several references to how he is SOULless and the only thing that interests him is seeing everything and not kindness), then he would attain his true form in Neutral with the power of 7. In True Pacifist, he would have EIGHT SOULs (All the monsters add up to one), which is... more than seven.
 * 3) What do you mean by "during the battle Asriel use different human Souls color including red which mean red is Chara souls"? In Neutral, he does not use red, because there is no red except for you. In True Pacifist, he doesn't specifically use any human SOULs, unless you mean the background. (Which I think actually avoids red.) He does use six of the monster SOULs, though.
 * 4) The coffins are empty because Asgore took them out to give them a proper burial. If you could just put your SOUL back in your body... that's called immortality.