I have always believed that the conditioning through which people are born in often determines some of the character and attributes which sometimes Influences their personality.
People often go through life changing experiences that tweaks them a whole lot, in this video I talked about how people go on to become sadists Irrespective of the fact that they never started out being that way.
I talked about how sometimes we can easily help someone who's slipping Into the downward spiral of sadism.
People are often influenced more by the things that feels quintessential in their lives, the memories that often stay with people sometimes determines their character.
If the mind is cheerful or not it's often defined by the memories we have, either they're pleasant or unpleasant.