What does it feel like to write? Margaret Atwood, from Negotiating with the Dead

What does it feel like to write?  Margaret Atwood, from Negotiating with the Dead 

“Obstruction, obscurity, emptiness, disorientation, twilight, blackout, often combined with a struggle or path or journey – an inability to see one’s way forward, but a feeling that there was a way forward, and that the act of going forward would eventually bring about the conditions for vision – these were the common elements in many descriptions of the process of writing.”