What are the images in Kenyon's "Let Evening Come"?

The poem develops from images of late afternoon to those
of night. The sunlight shines through “chinks” in the barn walls, moving upward on bales
of hay as sunset develops. The cricket takes up its chattering song, and the fox returns
“to its sandy den.” The images are connected by the time sequence of day to night and
also by the references to the regularity of human activity, including the implication in
the last stanza that death, too, is as natural as the setting of the sun. The quotation
of John 13:18 leads naturally to the double meaning of the final repetition of the
phrase “let evening come,” and we recognize that evening will come to end breath and
life just as it comes to end each day. There is a regularity about the poem that
suggests acceptance and affirmation.