The spirit laughed again, doing a little mid-air somersault to show its happiness.

"Well, I mean, it's not nice to 'make' them do stuff. But they usually don't mind so we aren't really 'making' them, and having them do things is just sort of what we do."

He paused to think about it, remembering when he had to try and briefly explain the same thing to Ruffnut. "We can have them do loads of stuff. We can Hyōi Gattai, which is sorta like letting the soul integrate with us, which is handy, it gives us their strength, knowledge and wisdom but there's a few catches."

Hana then tried to put the idea of integrating into more relatable terms. "So, if anyone but a Shaman had a soul integrated into them, even those who can see ghosts, it'd be a 'possession', since only Shamans can control spirits. Strong willed people can fight 'em off a bit but really they're no match and the spirit will take over."

He gestured to the Holy Spirit, which was now waving at Hit Girl. "So, if this guy wanted to possess you, even though you can you have some power, which allows you to see him sometimes, and you're strong willed." He prodded Hit Girl in the chest, smirking. "I can tell." Hana continued. "He'd still end up taking complete control." He pointed to himself. "Shamans are incapable of being possessed, as our souls will dominate any others that try to enter."

Hana grinned widely. "But the best way of using a spirit by far is an Oversoul."