I recently ran across a powerful exercise for first-time novelists. You're supposed to seek out an image you think represents your future book cover -- and then cut out words and paste up a mock cover to remind you of the dream of publishing that manuscript one day.
Can I just say HOW MUCH FUN it was to do this? I have some graphic design expertise so I did a pretty involved mock-up (see photo). Then, I did one for the two women in my writers' group. (We had breakfast today to pump each other for a Friday full of writing.)
The Artist's Way also encourages writers to imagine all the juicy details of their dreams. Not just stating "Publish book." The author suggests writing specifics about what it would mean to achieve that dream. My image is walking in downtown Durango past Maria's, our independent bookstore, and seeing copies of my book in the window with a sign, "Latest Novel from Local Author Mandy Mikulencak."
A former co-worker of mine would write her dreams/wants/desires on pieces of paper, fold them up and hide them in different places in her house. Another would write out her intentions and then burn them, sending the smoke up as her request to the universe.
Do you take time to conjure your dream, in all its glorious details? I highly recommend it.