Which best describes one of the themes in "spring" by edna st. vincent millay?

It poses a crucial inquiry about existence, passing, and resurrection. It's not altogether negative and desolate but rather is sincere in making inquiries about the truth of life. The subject spring sounds vivacious, as it speaks to new life, the resurrection of blossoms, rich leaves, greenery flourishing all around thus and the effective scent of verve.