What is the essence of those objects? Are they essentially firewood? Are they essentially holy images? Or are humans merely projecting their own internal ideas onto those external objects?
New thread needed. In brief:
The essence of the statue is found in its formal cause: the shape of Buddha.
The material cause is wood. The wood is accidental, could have been bronze and would still be the shape of Buddha.
The efficient cause is the artisan. Also accidental.
The final cause is to honor Buddha or warm the temple. Therefore, accidental in your example.
The gap between mind and reality (which I suspect is your point) is acknowledged in western philosophy, epitomized by Descartes.
I do not, as Descartes thought, have to infer my existence from the fact that I am aware of myself thinking. I perceive it directly, just as I perceive directly the existence of all the physical objects that surround me. If there is any doubt at all about the truth of such judgments, it is the merest shadow of doubt about whether I am suffering a hallucination rather than actually perceiving.
Empiricism, essential to technological advance, could not and, probably did not, flourish in the east because of this common sense fact.