Space and Time

For agnostics, in the absence of religious belief, the great metaphors of space and time are all that's left. But that's actually quite a lot really.

In the sciences, “double helix” and “string theory” and "black holes" may only be metaphors but they grab the imagination of writers, artists and musicians too. I like these lines by Vladimir Nabokov: “in the spiral unwinding of things, space warps into something akin to time, and time, in its turn, warps into something akin to thoughts…” (Speak, Memory, chapter 15).

DNA

In the arts, it's the same metaphors. I like these lines by W.H. Auden in In Memory of W.B. Yeats:

But for him it was his last afternoon as himself,
An afternoon of nurses and rumours;
The provinces of his body revolted,
The squares of his mind were empty,
Silence invaded the suburbs,
The current of his feeling failed; he became his admirers.