P.K. page's poem Adolescence, what is the "question" and what is the meaning of "partly sculptured stone?

in love wore in green embrace.
silken rain fell through spring upon them.
in park fed swans ,
whittled nervously strange hands.
, white mixed colours
if drew flowering trees.

@ night 2 finger whistle brought down
waterfall stairs shy smile
eddy, turned round , round
lazily ,
nowhere—as in dreams things , aren't.

walking along avenues in dark
street lamps sang sopranos in heads
voilence never understood
, movements when
had no conclusion.

leaning question had motion;
after parted savage , swift gulls.
asking , asking hostile emptiness
sharp partly sculptured stone
, watched, forgetting, amazed
see them form , fade before eyes.

having trouble understanding last stanza of poem, give me hint on how interpret it?

in love wore in green embrace. silken rain fell through spring upon them. in park fed swans , whittled nervously strange hands. , white mixed colours if drew flowering trees. @ night 2 finger whistle brought...

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