Eä:
“Ilúvatar called to them, and said:
'I know the desire of your minds that what ye have seen should verily be,
not only in your thought, but even as ye yourselves are, and yet other.
Therefore I say:
Eä! Let these things Be!
And I will send forth into the Void, the Flame Imperishable,
and it shall be at the heart of the World, and the World shall Be;
and those of you that will may go down into it.'
And suddenly the Ainur saw afar off a light, as it were a cloud with a living heart of flame;
and they knew that this was no vision only, but that Ilúvatar had made a new thing:
Eä, the World that Is.”
--J.R.R. Tolkien, The Silmarillion, Ainulindalë (The Music of the Ainur).