Ok, the documentation tells me I should try to not understand Quaternions and just use the methods Unity give me. I tried it, I am still really very lost. I'm trying to make an enemy look at the player and while, it keeps "looking" at the direction of the player, tts whole body is spinning on his axis I can make a model keep "looking" at the other. I did it with Quaternion.Euler, with Quaternion.FromToRotation and with Quaternion.LookRotation. But make it look at the player *and* keeping the body spinning like that.... I just can't. Whatever I try the rotation just goes crazy to different directions... Anyone has any idea of the math behind that? Thank you a lot in advance.