And I have found this prayer by Leunig which just seems to fit:
We give thanks for the invention of the handle.
Without it there would be many things we couldn't hold on to.
As for the things we can't hold on to anyway,
let us gracefully accept their ungraspable nature and
celebrate all things elusive, fleeting and intangible.
They mystify us and make us receptive to truth and beauty.
We celebrate and give thanks.