at once its own, and yours

By summer’s end there are
No more perfect leaves.

But won't you be ashamed
To count the passing year
At its mere cost, your debt
Inevitably paid?
For every year is costly,
As you know well. Nothing
Is given that is not
Taken, and nothing taken
That was not first a gift.

The gift is balanced by
Its total loss, and yet,
And yet the light breaks in,
Heaven seizing its moments
That are at once its own
And yours. The day ends
And is unending where
The summer tanager,
Warbler, and vireo
Sing as they move among
Illuminated leaves.

-- Wendell Berry, lines from "Sabbaths 1998, VI"