I think you are talking about
Inner peace (nirvana)
Only a few will find me,
Only a few dedicated individuals are able to attain inner peace.
But those who do,
Put in little effort,
The secret to achieving inner peace is to shed away all worries, and ensure that there is no effort exerted by the mind.
Yet the benefits are true.
The benefits of inner peace are an enhanced state of living.
You're all looking for me,
It's funny that way,
You think it's impossible to have me,
But I'm here every day.
Almost everyone wishes to have inner peace but only a few manage to achieve it. It can be achieved anytime, if we just let go of our wordly desires.
Try as you might, all you do is stress,
You'll never get me that way,
Stressing about inner peace is never going to let you achieve inner peace.
Just be content with less.
One of the greatest principles of nirvana includes shedding of all materialistic desires.
You've caught glimpses before,
But it's never enough,
We all find ourselves at peace during certain activities (like a spa or yoga session) but it's not enough for us to remain stress free for good.
For without me, life's pretty tough.
Life without peace is quite miserable.
I'm here and waiting for all who are wise,
But you need to find yourself first,
Before you can win any prize.
In order to attain inner peace, you need to accept yourself and only such a wise attitude can lead one to nirvana.