Yet the forms are always breaking down. How do they come to be in the first place?

Think in terms of energy versus form. Energy radiates out, while form coalesces and condenses in. Galaxies are energy radiating out, while form coalesces in. Our bodies have the digestive, respiratory and circulatory systems processing the energy driving us on, while the central nervous system sorts through and organizes the forms precipitating out, as well as trying to referee the emotions and impulses bubbling up.

So form arises as energy starts to reach its most extended state. Like frequencies and amplitudes. A flower is the bud in its most extended form. Our thoughts are the forms arising from our feelings. We grow up and then start to form into the adults that fit into our niche. Like stem cells and adult cells. If we want to keep growing, we have to keep finding other ways to do it, as each expression reaches its final stage. We want our cake and eat it too, because we want both form and to transcend it.

The anarchy of desire, versus the tyranny of judgement. The heart and the head.