I WILL MAKE YOU BRAINLEIST! PLEASE HURRY! BRAINLIEST! BRAINLIEST! HURRY EASY QUESTION!

What is the mood of this poem?

Until I saw the sea
I did not know
that wind
could wrinkle water so.


I never knew
that sun
could splinter a whole sea of blue.


Nor
did I know before
a sea breathes in and out
upon a shore.