Stanza 3 Summary

Lines 9-12

And since to look at things in bloom
Fifty springs are little room,
About the woodlands I will go
To see the cherry hung with snow.

• Apparently, 50 years (here phrased as "springs"—an example of synechdoche) isn't enough time to look at things in bloom. Our speaker's going glass half-empty on us here. There's just enough "room" to squeeze in all the sightseeing he wants to do.
• The thing is, however, the speaker isn't really talking about sightseeing. Sure, he says "look at things in bloom," but this is just a metaphor for what we mentioned earlier: making the most of things. 
• Since the speaker is committed to making the most of things, he will go about the woodlands and look at the "cherry" trees (he doesn't say "trees," but this is what he means) "hung with snow" (another metaphor for the trees' blooms).
• This whole idea of making the most of things while we still have time left to do is often goes by the two-word Latin phrase carpe diem, which is often translated as "seize the day." 
• The basic idea is, "Do the most you can, because you never know when you might day. Don't put off until tomorrow what you can do today, because tomorrow may never come." (The phrase comes from a line in a poem by the really famous Latin poet Horace. Its most recent, famous appearance probably came in the movie Dead Poets Society.)
• Obviously, 50 years is a long time, and if the speaker has fifty years left, he really shouldn't be worried about seizing the day, should he?
• Wrong. This poem isn't about having enough time to do things, but making the most of whatever time there is.
• The speaker realizes that the number of things he would like to do in life cannot possibly all be accomplished in just fifty years. 
• So… he's headed out to the woodlands. This is his way of saying, "I'm to go out there, and make the most of every day and live a full, eventful life."
• We're pretty pumped up by this dedication, aren't you? Although, there is something nagging us about the way this poem wraps up.
• The "cherry hung with snow" is, as we said earlier, a metaphor for how the trees look when they're covered in white blossoms. But why use the idea of snow when, here we are, smack dab in the middle of spring?
• It's as though, even in the midst of blossoming spring's rebirth and renewal—and this rededication to enjoying all life has to offer—the speaker can't shake the inevitability of death. Snow is part of the picture. As Game of Thrones would put it: "Winter is coming." The very thing that inspires our speaker to enjoy his life is the unshakable promise that it will end in 50 years.
• Inspiring? Depressing? Both at once? (We're gonna go with answer C.)