Heir of Heart then would turn into personality traits. Imagine when some facest of your personality unexpectedly manifesting in situation, in which you typicaly expose another one. And that is actually them. Traveling through the sea of your soul. On the other hand, they can help you with manifesting parts of your character that you had troubles with before. Like in case your anxiety and self-loathing prevents you from aknowleging what cool and brave person you are.

That’s kind of scary though, “Travelling through the sea of your Soul”, it’s already weird and dubious becoming a thought or poofing into wind, but the way you worded that makes that extremely strange.