In curved Einsteinian space we are at all times, technically, looking at the back of our own head.
Art is always the replacement of indifference by attention.
Art is the attention we pay to the wholeness of the world.
nothing now exists that is so valuable as whatever theoretically might replace it.
Unless the work of art has wholly exhausted its makers attention, it fails. This is why works of great significance are demanding and why they are infinitely rewarding.
The birds suffer their suffering each in a lifetime, forgetting it as they go.