Maybe the given person, cup, or landscape is lost before one gets to painting. A figure exerts a continuing and unspecified influence on a painting as the canvas develops. The represented forms are loaded with psychological feeling. It can't ever just be painting.
And I can just see that sometimes the technique is blasting powder rather than steady struggle.
As a work progresses, its power to elicit and dictate response mounts. There seems to be an optimum moment when this power is at its greatest which just precedes the point where 'elicit' is no longer apt usage. 'Dictates' is the word for this condition and tyranny is the adversary.