So glad to see you here ~ that seems a very insightful observation, Tchocolatl ~ it's as though [somehow] the tiny words, generally understood as being of no consequence, are being honoured ~ and, with that thought, in my mind, symbolically standing in for the errands.
In reality, in sentences, the small words are the connectors, that bring the bigger words of thought together. In his poem, these small words are given the same value in terms of capitalization, in their symbolizing of the errands; as it is the small deeds and errands for others, that bring their lives together [the details of those, separate lives, symbolically found in the
bigger, capitalized words]. I hope I haven't lost you

with all that. I know clearly

what's in my mind as I say it

. It's kinda like the movie-within-a-movie concept

.
Good point on the pigs potentially representing the "negative" side of errands in life. That's a point that Lightning referred to, the drudge of it all, a life of endless errands, so to speak.
I like what you've said about the pig in Chinese symbology.
In fact, no matter where a pig resides, or what it eats, it remains one of the brightest and most intelligent of animals. Yet, they go to slaughter. Maybe it's all those acorns that have inbred intelligence and brightness into them ~ and if man ate more acorns himself, he'd stop sending the pigs to slaughter. Sorry

~ just had to go there

!!!
Well, I hope you can return soon [and aren't the hummingbirds wonderful ~ no matter by what name they are called!] and help us grapple with this next long sentence staring at us. I'll check in later tonite, and if nothing has appeared, will make my attempt.
By the way, every time I see your signature, I mean to comment, but don't think of it until after I Submit my post, and see it above mine. I love the simple truths that the Aztecs brought together in those 5/6 words. [As a matter of fact, we could even apply it to all our wanderings here ~ exploring the terrain for explanations and understanding

.]
~ Lizzy