Wow, i never thought of it like that, walking fish, how true. Astronomers have yet two find two worlds alike, there is a theory that every planet holds some sort of life which makes sense.

Detecting it is another thing, because we can only function in terms of our model, humans can only detect humans. The universe is probably a platform for the physical expression of a vast range of life in the spiritual. It seems earth is quite advanced, that life on a barren planet can only been even more primitive.

Which brings to mind why? How does a physical life advance spiritual life?

Maybe in the same way there is night and day, good and bad, light and dark. To be is to experience the opposite, to give meaning to it.

To live, and then to die. To forge something greater.