what is the mood of the poem? what is the effect of the mood on the reader?

read the poem “pear tree,” by h. d., then answer the questions:
silver dust
lifted from the earth,
higher than my arms reach,
you have mounted.
o silver,
higher than my arms reach
you front us with great mass;

no flower ever opened
so staunch a white leaf,
no flower ever parted silver
from such rare silver;

o white pear,
your flower-tufts,
thick on the branch,
bring summer and ripe fruits
in their purple hearts.