Actually..... this could get rather humorous real quick if you just focus on the "brain"...... Think about it, look at all the craziness we're capable of despite our high minded intellects. The real question is, what good is a brain? ? 

my 2 cents on it

It's a question for the ages.

It drives some men insane.

Why did god put me on this earth?

 Why do I have a brain?

I pondered the very question.

It weighs heavy on my mind.

I need to know. an answer

Why am I ?

I've spoke to the Dali lama.

He said to search within.

Said, you're not the first you're not the last.

It's stymied wiser men.

It's a problem that needs solving

If I 'm to be me.

What did god put me here to do?

What's he want me to be?

I ponder the question.

It weigh heavy on my mind.

I need to know. an answer

Why am I?

I've confided the Hare Krishna.

Left me even more confused.

Said, you're not the last you're not the first

To ponder which road to choose.

It's a question for the ages.

It drives some men insane.

Why did god put me on this earth?

Why do I have a brain?

I pondered  the question.

It weighs heavy on my mind.

I need to know.an answer

answer of some kind, Why am I?

I'll use some of this tomorrow. Thanks

That's a whole nother song.