Board Thread:Questions and Answers/@comment-43655525-20190829001420

So I was talking with my sister, and I was wondering "what happened to Chara+Asriel's soul(s) if they died?" Would the determination of the human soul save the monster soul, or would the monster soul disintegrate along with the human soul? I was also wondering why Chara was so connected to Frisk in so many ways, when it suddenly hit me - now, I personally don't like "reincarnation theories," and I hope this ain't one, though it kinda is - but what if Asriel's soul disappeared (or got lost in Flowey somehow), whilst Chara's soul split apart and vanished, later reappearing in Frisk (either being in Frisk from the start or taking control of them as soon as they entered the Underground) Because of their determination they avoided death, and they persisted until they entered Frisk. But why did they enter Frisk? To try to free the monsters again – just like what they wanted to do from the start. They waited until the optimal time to reenter the fray, and then with the player controlling them (Frisk), they tried to find the way to save all the monsters. You as the player don't know this; and neither does Frisk, who probably just has Chara's (and the player's) determination, and not their memories. But as the player, you know that you gotta play that game and find the happiest ending – save humanity from Asgore, and eventually, save the Monsters!

Or you could just amass LOVE. Whilst some ordinary players might be dissuaded from killing any monsters soon into the game, some players, usually after playing lots of resets ad experimentation, eventually decide to go on a killing, LOVE-amassing spree. The sheer determination it takes to do these awful things just to see the end, and/or the vast amount of power you store up for yourself in your (Chara's) soul... It begins to stir something inside of you. You could look at it one of two ways – either Chara is going evil, or my personal preference, Frisk is going evil, but since Chara's soul is growing in power and determination, it begins to awaken, and Frisk begins to identify themselves with Chara, only adding their own evil, murderous intentions to Chara's image. Then at the end of the Genocide route, your love is so insanely high that Chara awakens from the sheer amounts of determination and power built up in you/Frisk, leading to either Chara's body being raised/reconstructed before you, Chara appearing before the player/Frisk as a spirit, OR Frisk completely transforming into Chara, completing the “reincarnation,” if you will. At this rate, Chara recognizes that they had been raised because of you and your determination and your mad pursuit of power, and they identify themselves with that feeling of amassing said power. They then offer to destroy this world (delete/uninstall the game), and then go onto the next world (another game), as you amass more power, “eradicating the enemy and becoming strong.” With this purpose in mind, and Frisk/Chara's soul so chock-full of LOVE, it became impossible to feel real love and sentimentality for anyone – and if you try to recreate the world again, then they ask for your soul – or rather, Chara's soul back – so that you still technically control Frisk in the game, but Chara now claims the soul, and reminds you of this when you try to get the happy ending again.

I dunno, these are my thoughts. Re-reading Chara's Genocide ending dialogue, I'm wondering if this theory even lines up with Undertale's actual canon. What do you guys think? 