What is the meaning of barter by sara teasdale?

life has loveliness to sell,
all beautiful and splendid things,
blue waves whitened on a cliff,
soaring fire that sways and sings,
and children's faces looking up
holding wonder like a cup.
life has loveliness to sell,
music like a curve of gold,
scent of pine trees in the rain,
eyes that love you, arms that hold,
and for your spirit's still delight,
holy thoughts that star the night.
spend all you have for loveliness,
buy it and never count the cost;
for one white singing hour of peace
count many a year of strife well lost,
and for a breath of ecstasy
give all you have been, or could be.

how does the author’s word choice, figurative language, and use of poetic devices convey the meaning and the tone? give me some ideas me out (; 30 points for best and fastest !