Why are all shrines made of wood? Why not use stainless steel?

The shrine was originally a product of religion. Speaking of religion, we must say Feng Shui, that is, Feng Shui. Stainless steel is gold, and gold has always been regarded as a sharp weapon. This shrine is suitable for moderate worship. Of course, some people worship strange gods, and it is also appropriate to use grotesque shrines ~ I have never seen stainless steel. If you see the picture above ~ I'm going to buy a shrine ~