Hi Midnight ~
This is my take on this poem:
". . .
was bright for my friends bred in close avenues
of stone, and
let us see too much." ~ true that he includes himself here; however, it seems to be a way to set the scene as a whole and a segue into describing the vastness.
". . . made us and our smoking fire quite irrelevant" ~ acknowledgement of how miniscule man is in contrast to Nature. This mere acknowledgement come with a sense of awe and reverance, with those who bother to grasp and verbalize it.
". . . between their eternal attitudes." ~ another recognition of the realities of Nature; insight and acknowledgement that come only as a result of sensitivity to
its realities.
"We knew we were intruders." ~ Not literally being "intruders;" however, this recognizes, through its phrasing, the pristine and sacred nature of where they were.
"Worse. Intruders unnoticed and undespised." ~ An implicit plea/expression of desire to be recognized by Nature, to even be relevant in its midst; to be considered anywhere near as
real , as to even be
noticed ~
despised, if necessary. It hearkens to what they say about the need for children to feel validated ~ that 'negative' attention is better than no attention at all. So, to be yelled at is better than to be ignored. In this case, with Nature, neither is happening. That perspective, again, is one of acknowledging how 'inconsequential' one feels in the presence of the all-powerful, whether it be a parent, Nature, or G~d. Their relative 'unimportance' in this scenario is established.
". . . with a
sigh the river urged its silver flesh." ~ the river is perceived and described in appealing terms.
". . . bull-frogs croaked warnings, but to each other." ~ even the bull-frogs were ignoring them. The expression of this 'being ignored' reveals a desire to be a part of it, as well as a humble recognition of being the 'intruder,' which is likewise with the line that follow:
". . . in a private grudge, flew noiselessly at the moon." ~ sensitivity to the animals' awareness of their presence [many who go into the woods/Nature just barge, blunder, and bungle on through and
miss literally
hundreds of creatures, and have zero awareness that they are intruding on these birds/animals/fowl habitat, i.e. homes ~ much less be aware of their 'psychic' effect on them].
"What could we do? We ran naked into the river,
but our flesh insulted the thick slow water." ~ so often, people feel they must
do something;
act. Rather than just
be; just rest and take in their surroundings. Yet, his pointing this out regarding their reaction whilst being out there, and feeling so compelled, makes his
awareness of that dynamic very clear. Likewise, once in the river, the river that "with a sigh urged its silver flesh," he immediately takes note that the manner of their entry "insulted" the "thick slow water" ~ water that should have been entered slowly, smoothly, and with due respect [i.e. a merging into and with vs. a confrontation of Nature].
"We tried to sit naked on the stones,
but they were cold and we soon dressed. " ~ dressing isn't an unrealistic thing to do, all things considered, but the fact is that they "tried."
"One squeezed a little human music from his box:
mostly it was lost in the grass" ~ Nature continues to 'swallow' them up, and I feel "a little human music" makes the clear distinction that "human" music [coming from out of a box] is "little" in comparison to the music of Nature; "mostly it was lost in the grass" seems to have no implication of regret that it was, but rather more that it was 'fitting' that Nature swallowed it up, even the 'smaller' aspect of nature [the grass], being fully capable of doing so. This reminds me of how 'anachronistic' bringing recorded music into these environments so often seems. 'Live' music played from crafted instruments becomes a part of the surroundings in a most agreeable way; whereas, otherwise, it would seem to be enough to let Nature provide what it will in the way of music. [If you ask me wouldn't I take a recording of Leonard and listen to him out there, well

..... ~ I didn't write the poem

]
". . . where one struggled in an ignorant embrace." ~ "ignorant" suggests that the friend, the one with the portable music player, was oblivious to the Nature around [presumably] him, and was instead preoccupied with 'his' own, carnal nature. Even the "struggled" suggests a lack of continuity and flow with
anything, much
less Nature.
"One argued with the slight old hills
and the goose-fleshed naked girls, I will not be old.
One, for his protest, registered a sexual groan." ~ this
seems to me to be the compulsion to 'prove' one's own 'vitality' ~ the hills have survived; whereas, we will not. We will grow old, and we will die. Something about Nature quite often brings us an awareness of our own mortality.
"And the girl in my arms
broke suddenly away, and shouted for us all,
Help! Help! I am alone. But then all subtlety was gone
and it was stupid to be obvious before the field and sky,
experts in simplicity. So we fled on the highways,
in our armoured cars, back to air-conditioned homes."
~ these are the lines that sum it up, with regard to the contrast between Leonard's sensibilities, and those of the friends, manifested in the girl's actions. From his description, it sounds like he was lying there, quiet and content, taking it all in, noticing all that was going on around him [with Nature, as well as his friends], when she "broke suddenly away."
I can't remember [at the moment] from which song the [paraphrased?] line "So small against the sky" comes, but the reality is that in those wide expanses, we do feel small, insignificant, and 'alone.' Some accept this and go/try to go inward with it, to try to figure out what it all means, how they really fit in with the world and life, what their purpose is, and all those bigger questions. Others 'rail' against it, and try to melodramatize their position.
"But then all subtlety was gone
and it was stupid to be obvious before the field and sky,
experts in simplicity."
This sounds like a lament of laments. ". . . Subtlety was gone . . ." ~ [instantly!] ~ subtlety, the preferred and appropriate manner of being. He had pointed this out earlier, with regard to how they ran into the river. "
Stupid" to be "
obvious" ~ in front of the wisdom of Nature [in this case "the field and sky"].
". . . experts in simplicity . . ." ~ "experts" is clearly a word of admiration and respect here ~ and "simplicity," in contrast to the behaviours he's been pointing out, is the preferred manner of being. He does not seem happy with what has occurred here, at least his own spell ~ or any hope of one ~ certainly broken.
Her behaviour has an air of desperation to it. In the [originally mentioned] "close avenues of stone," there is much to distract, much that at least
can cause one to not feel so alone, but out there ~ it can become painfully obvious, as it seems it did with her. With the attempts of the 'guy' with the music, the attempts, of distraction, apparently weren't really working, either ~ in terms of 'aloneness.' Leonard seemed to recognize that.
He acknowledges the "for us all" ~ yet, he seemed to be acknowledging it inwardly, through respectful contemplation; not outwardly, "shout"ing and being "stupid" and "obvious." She even seems to have somehow 'embarrassed' him in front of Nature. It sounds as though it may well have been his idea to depart. She certainly didn't seem to be 'getting it.'
"So we fled on the highways,
in our armoured cars, back to air-conditioned homes."
This doesn't say who was driving, but it sounds like they were going fast; if not literally in their cars, at least in their psyches ~ but, again, Leonard's recognition of the 'flight' on the 'highways' [the man-made paths] and the "armoured" [protected from Nature, and from having to go, and look, and be, inward] cars, and the "air-conditioned homes" [where we get to 'control' Nature, and thereby feel at least 'adequate' in relationship to it, or in at least some of their cases, 'against' it]. Back to where one can feel 'safe' and distracted again.
My feeling is that this poem, with its many observations, was written by someone feeling, at the very least, ambivalent about the situation. He acknowledged his part in it; but he seemed to do it begrudingly, with consternation. More importantly, he seemed
acutely aware and respectful of the power that exists in the quiet of Nature, and the necessity of going into that quiet to be 'at one' with it, and how unnerving it can be for 'oneself' to
be in that 'space,' and the issues that it can bring to the fore. When all that was 'violently' interrupted [the last straw of the interruptions], it was simply time to go! I got the sense that the 'fleeing' was more greatly a part of the friends' feeling that it was of Leonard's.
I don't know what the others did or wrote, but I know that he chose to write this poem, as he 'tried to come to terms with'[?] all that had just happened. Someone who wasn't aware of the other levels of 'being' wouldn't have even been inclined. Could be they just went straight to the frig, grabbed a beer

, and settled back into that air conditioning.
I don't think we read a different version of this poem. I think we read the same version differently. But, I could be wrong

.
~ Lizzy