Analysis of One love

One Love.
One love is all that's needed.
When facing life alone.
Without one you will suffer.
Nor have a happy home.
For who is there to answer back.
To hold you when you're cold.
Or in the end and stumbling because you're very old.
A vow is made when joined in youth forever to be wed.
In sickness or in health of life until they both be dead.
There are storms sometimes upon our Life, we feel not much pleasure.
But don't give up or lose all hope loves your greatest treasure.One  love is all that's needed.
For this I'm very sure.
One love is all that's needed.
From another one's heart that's pure.