As stated in the title. What is the word or phrase for the point where we stare at, when our mind is caught in a deep thought?
To a sanctum, past the reaches
Of my fancy and my whim
I sit, staring at the (??????)
My haggard face grim
The point of posting the whole stanza is that you can/should word the 3rd line just as you like, maintaining the fluency and rhythm. at the after "staring" are optional (can be removed or modified). But some mention of sitting and staring must be present.