on the hunting down of ideas

I've been struggling lately to turn a lot of ideas I have into actual stories. I kind of feel like my writing mojo has taken a temporary leave of absence, and the harder I look for it, the harder it is to find. It has been incredibly frustrating.

This morning, in Warren Ellis' BAD SIGNAL e-mail, he said:

At least half of all writing involves just sitting and staring into space. Letting your brain out to hunt down ideas, bringing them back all warm and bloody between its teeth.

This is...