It's very simple. Keep your body as clean as possible,
your mind as clear as possible. That's all you need.
And do it in anyway you can, in your own way.
It doesn't matter. That's why I say 'peaceful body,
peaceful mind'. And then you'll be useful.
You don't have to 'become' a useful person.
You will be useful.

~ Swami Satchidananda