Insanity

What makes one a human?

Its consciousness

We are humans based on our perspective as our consciousness tells us

So who would be higher human and who would be lower human? 

The one who has bigger title or position than other?

That's kinda similar to other animals too i guess.

We and other species seem familiar and our life works similar in some way

But what's different is that only we humans get 'insane' as they say

Do other species get insane too? As far as they say No they don't

So why do humans go insane? 

Their brain malfunctioned?

But if so considering the mechanism of our body, that would happen because of some mechanical error in our body, like nerve damage or some shock

But those could be considered because we know the cause of that, damage in nerve or something like that is physical and we can diagnose it too medically.

BUT what about going insane by thinking too much? Going insane by meditating? 

Also why do only humans meditate?

Why are there stories and myths about mediations?

It looks like we humans can achieve a higher level of consciousness and there are many myths about the people who have achieved higher consciousness. 

If that's true then only way one would be of higher self is by achieving higher consciousness.

And maybe being insane is an effect of that trial or it could be a barrier we gotta go through.

Assuming it's true, the true goal or the biggest thing a human can achieve is higher consciousness and that would make someone higher.