The cool breath of evening slips off the wooded hills, displacing the heat of the day, and with it come the birds, as eager for the cool as I am. They arrive in a flock of calls that sound like laughter, and I have to laugh back with the same delight. They are all around me, Cedar Waxwings and Catbirds and a flash of Bluebird iridescence. I have never felt such a kinship to my namesake, Robin, as in this moment when we are both stuffing our mouths with berries and chortling with happiness. The bushes are laden with fat clusters of red, blue, and wine purple in every stage of ripeness–so many, you can pick them by the handful. I’m glad I have a pail, and it’s getting pretty heavy. The birds carry their berries in the buckets of their bellies and wonder if they will be able to fly with so much cargo.

The abundance of berries feels like a pure gift from the land. I have not earned, paid for, nor labored for them. There is no mathematics of worthiness that reckons I deserve them in any way. And yet here they are–along with the sun and the air and the birds and the rain, gathering in towers of cumulonimbi, a distant storm building. You could call them natural resources or ecosystem services, but the Robins and I know them as gifts. We both sing gratitude with our mouths full.

[…]

Gratitude and reciprocity are the currency of a gift economy, and they have the remarkable property of multiplying with every exchange, their energy concentrating as they pass from hand to hand, a truly renewable resource.

Can we imagine a human economy with a currency which emulates the flow from Mother Earth? A currency of gifts?

When I speak about reciprocity as a relationship, I don’t mean a bilateral exchange in which an obligation is incurred, and then can be discharged with a reciprocal “payment.” I mean keeping the gift in motion in a way that is open and diffuse, so that the gift does not accumulate and stagnate, but keeps moving, like the gift of berries through an ecosystem.

[…]

Some powerful feminist thinkers call us to remember that gift giving is among the most primal of human relationships. Each of us begins our life as the recipient in what Genevieve Vaughan has called a “maternal gift economy,” the flow of “goods and services” from mother to newborn. When the mother nurses her child, the boundary of the individual self becomes permeable and the common good is the only one that matters. The maternal gift economy is a biological imperative. There is no meritocracy or earning of sustenance. Mothers do not sell their milk to their babies, it is pure gift, so that life can continue. The currency of this economy is the flow of gratitude, the flow of love, literally in support of life.

Robin Wall Kimmerer, The Serviceberry: Abundance and Reciprocity in the Natural World
meaning and purpose