This was an idea I got from reading the wiki!!

Basically a life crystal can posses a living human but it causes immense pain and seizures from all the moving parts and stuff! So what if you find one and accidentally get possessed!

Votv..

SCENARIO:

Basically you found a life crystal and accidentally fell on it, embedding it into you and allowing the life crystal control of you, painful for BOTH of you!

Ow ow ouchie... it can think in your language for simplicity!

AAAAAAAAAHHH OWWW I JUST BURST INTO FLAMES OWWW!!