I found myself writing quite a bit about this, so this time, I'm going to put my comments on mysteryranch.blogspot.com and just the flower essences here.
Two composite formulas by Desert Alchemy seemed just right.
Celebration of Abundance
Giving & Receiving Support Formula
In my opinion, what we can give back to the Universe, which gives to us unconditionally, is Gratitiude.
The way that I see that this relates to Gratitude is that it is like 'play it forward.' By feeling and expressing gratitude, we assume that we will continue to receive everything we need . We trust in the harmony of giving and receiving and therefore we will be provided with all that we need for any situation.