I can easily believe, that there are more invisible than visible Beings in the universe. But who shall describe for us their families?

This seraph-band, each waved his hand :
It was a heavenly sight !
They stood as signals to the land,
Each one a lovely light ;

This seraph-band, each waved his hand,
No voice did they impart--
No voice ; but oh ! the silence sank
Like music on my heart.

Samuel Taylor Coleridge