Áine:

It is an absolutely beautiful song and I would not change a word.

And it is not too simple. The most powerful phrase is the leanest one. Here is one of the simplest song couplets ever written:

Amazing grace, how sweet the sound, that saved a wretch like me!
I once was lost, but now am found; once blind, but now I see.

Regardless of the metaphysics it is extraordinarily sweet and direct and it pierces to that place that words know not, which is what songs should do whenever they can.

Yours does that. Thanks for revealing it. Will you add it to your stack of unfulfilled taing requests, please? I know it will be another that gets played over and over.