What's this? (For Caanan)

It's unrehearsed
And undefined
(And imperfect).

It's surprising
And yet, not,
(This is preferable).

It's presence,
Not Presents
(No tally, no score).

It's shaking legs
And shaking hearts
(No wonder!).

It's precious
And cynical
(Stay just as you are).

It's refusing
To be serious
(Oh, but when you are!).

It's something
I look forward to,
(Who could ask for more?).