I use and interact with all sorts of natural resources without assuming they exist for me.
We are not talking about ideas on the cosmic manifestation of the phenomenal world.
we are talking about ideas of how an individual ultimately interacts with the environment they are in.
Water. Electricity. Gas. It would be ridiculous for me to assert that these things came into existence for my pleasure. I know of no one who thinks like that. Rather the resources were just there, and we found a way to use them. No preplanned purpose involved at all.
We are talking about the values that arise in the individual as a consequence of the phenomenal world.
For example you no doubt have quite a wonderful arrangement for water, electricity and gas which go far, far beyond simply being there and existing outside of any preplanned purpose or structure.
I can buy a work of art with the intent of hanging it on my wall. But that doesn't necessarily mean I think the work of art was made just for me. I have simply reappropriated an already existing thing for my own use. The work of art was made for its own sake. That's what I like about it. It's spontaneous expression of feelings.
Even if you do something eccentric and pull something out of your next door neighbors rubbish to hang on your wall as a piece of art, you are manifesting your values as an individual.
Hence :
Because one uses it, consumes it, interacts with it; and because humans are beings that have volition.
I can eat without assuming the food came about just for me. The animals and plants that I turn into my food were for their own sake before I ever came along. I was nowhere in sight. There is no need to project some abstract teleological schemata to avail myself of the benefits of this nourishment. To even think like that is a little crazy.
Sure.
However we are discussing schemata arising from volition, not teleology.
The matter that these are made of preexisted anyone around to please. To say that materiality has this purpose is certainly anthropocentric. Matter has preexisted humans for quite some time now. It isn't here to "please". We just adapt it to meet some of our purposes. But that doesn't mean that's what it exists for.
If you want to talk about matters of delusion, then obviously there is a need to talk about extracting purpose from the environment one is in.
I don't see the world existing to please me because I already know it existed long before me and manifests in many more ways that have nothing to do with pleasing me. Take air for existence. I only use a tiny fraction of this tremendous conglomerate of gases. Does that mean the earth's atmosphere exists to make me breath. Ofcourse not. I am only one fleeting tiny parasite thriving on the elements of an ancient planet.
It wouldn't matter if you were living under a different tree every night or residing in an urban mega-complex affording a godzilla sized carbon footprint per household (although given the more than likely scenario you are residing in something closer to the later, "thriving" would probably be the operative word ...).
You have a myriad of ways to assess and manage the world that are simply out of bounds for a "parasite" (at the very least, a tapeworm wouldn't hang something on your intestinal wall to beautify their surroundings)
Seems to me the only delusionals in danger of overprojecting such purposiveness on the universe are the theists, for whom God designed everything to please and help in some way:
Genesis 1:
28 "God blessed them and said to them, “Be fruitful and increase in number; fill the earth and subdue it. Rule over the fish in the sea and the birds in the sky and over every living creature that moves on the ground.”
29 Then God said, “I give you every seed-bearing plant on the face of the whole earth and every tree that has fruit with seed in it. They will be yours for food. 30 And to all the beasts of the earth and all the birds in the sky and all the creatures that move along the ground—everything that has the breath of life in it—I give every green plant for food.” And it was so."
actually I haven't introduced any religious (or teleological) issues into this discussion so far.
IOW the question of extracting value and purpose from the world is intrinsic to all humans (and indeed all living entities) .
AS wynn said,
Not being aware of one's intentions is not the same as not having any.
Seeing one's intentions is the first thing one would have to look at if they are asking "Is there a way to tell when you are deluded?"