How does Barry Lopez use imagery in Crossing Open Ground?

Imagery:

"A human being, a four footed animal, the open land. That was all that was present - and a 'thoughtless' understanding of the very old desires bearing on this particular animal: to hunt it, to render it, to fathom it, to subjugate it, to honor it, to take it as a companion" (Ibid, p. 9).

"We grasp what is beautiful in a flight of snow geese rising against an overcast sky as easily as we grasp the beauty in a cello suite; and intuit, I believe, that if we allow these things to be destroyed or degraded for economic or frivolous reasons we will become deeply and strangely impoverished" (Ibid, p. 38).