The Tao-te Ching begins by saying that:
The Tao that can be trodden is not the enduring and unchanging Tao. The name that can be named is not the eternal and unchanging name.
Yet this ineffable origin of all things has much that is said of it, beyond the claim of its ineffability.
Let the world be all worlds together (the universe if that, the multiverse if otherwise). Might we think of the Tao as the haecceity of the world, as the "this-ness" of existence itself? As far as some X is unique, X cannot be named with other things; that is, the names it shares are not names of its haecceity.
Can the Tao be the haecceity of reality, or is saying so tantamount to naming the unnameable?