<< If you want more aha moments, you must first scour some relevant material to give your unconscious something to work on. Then, Schooler [Jonathan W. Schooler] recommends finding time for unfocused thinking. >>
Emma Young. How to hack your unconscious… to find your inner creativity. July 25, 2018.
Claire M. Zedelius, Jonathan W. Schooler. Mind wandering “Ahas” versus mindful reasoning: alternative routes to creative solutions. Front. Psychol. doi: 10.3389/fpsyg.2015.00834. June 17, 2015.