What theme of the poem does the second stanza reveal?

romance, who loves to nod and sing,
with drowsy head and folded wing,
among the green leaves as they shake
far down within some shadowy lake,
to me a painted paroquet
hath been- a most familiar bird-
taught me my alphabet to say-
to lisp my very earliest word
while in the wild wood i did lie,
a child- with a most knowing eye.

of late, eternal condor years
so shake the very heaven on high
with tumult as they thunder by,
i have no time for idle cares
through gazing on the unquiet sky.
and when an hour with calmer wings
its down upon my spirit flings-
that little time with lyre and rhyme
to while away- forbidden things!
my heart would feel to be a crime
unless it trembled with the strings.

a; adults long for the romantic indulgences of youth.
b; time moves quickly in fast-paced, adult lives.
c; people outgrow their need for romance.
d; adults have no interest in exploring the natural world.