Monk Librarian #2

I am wondering about the act of ritual. How important is it to show up every day and 'do' the work before me. My method of working is fairly ritualized. I go to my studio each afternoon and turn on NPR and tie on an apron with a plastic bag against my clothing (to make sure no solvents get to my skin) then I tuck a towel into my apron tie, lay out my paints and begin. But how do I choose my subject each day...even within the genre I am currently addressing. Sometimes I think I should just lay out a one or three year cycle of work and sty with it until that time period is over. Other times I believe, that within my daily work ritual, I am following a divinely laid out rabbit trail and I need to just keep following.