[quote=VitaVitaAR]
You don't, I'm very wary of people thinking they're not necessary and in his backstory you mention him doing it without knowledge of spells."Spirit" ... I'm honestly not sure to tell the truth. It's an area I haven't considered before.
[/quote]

I was thinking of his backstory being a sort of "instinctive spell" thing, something like "spells" cast by children of wizards in Harry Potter.

If we go with spirit, his abilities will range more into things like astral projection, summoning and binding animistic spirits and what would amount to ki attacks.