Nature of a Painting's Outcome

Bridge over the Sun  C.T. Rasmuss, India ink/watercolor (2012).

If an artist's state of mind is completely calculated, especially in regards to the end result of the artwork, then what conclusion can be taken from a painting that's done over an extended period of time as well; is it considered to be forced since the end result is pre-determined, with the artist unwilling to expect a more 'natural' outcome..

Therefore...is it rather the artist's ability to listen to the conversation between the brush, canvas and what is being created or what the artist has set out to do, unwilling to compromise with the unexpected; that's most in tune with the 'Laws of Nature'?