It never goes away

In each and every way
Some say
You stay the same
But is that true?
I always believed that
Your heart is what never changes
It will always love
No matter what
From young
To old
It never goes away
Some say
It comes and goes
However, what do they know?
Your heart is the gateway
To every thing
From old
To young
Love to
Hate
Without out your heart you would not live