Board Thread:General Discussion/@comment-4504826-20160516034744/@comment-32069753-20161107001949

SLR isn't about the SOUL or the physical body, it's about determination, Flowey loads without a soul AND with his body killed, Frisk loads with both their body and SOUL killed, proving that determination is a separate entity within a being, it seems to be stored both in the soul(as proven by how Alphys can extract it from human souls) and in the body(as proven by how Alphys can inject it into a vessel), it's also possible that determination is humanities' version of magic, as seen by how both monster bodies and souls are described to be mostly made from it.