Hello Wei-Yi,
This is among the best questions of the entire series here. This is the very reason that I wrote my book, The Intuitive Investor. Your answer lies in cultivating skills that are right-brained in nature. Here I am referring to the brain functions that are creative and intuitive, rather than systematic and analytical.
The right brain thrives in an environment that is unfocused and unbounded. One easy way to get into that state of mind is to not focus on the problem you are trying to solve. Instead, ask yourself, "What do you do that rejuvenates you?" This could be exercising (e.g. running, swimming, yoga, etc.), art making (doodling, drawing, painting, sculpture, music, dancing, photography, etc.), spending time in nature (e.g. hiking, gardening, etc.), contemplation (e.g. meditation, prayer, mindfulness), cleaning (doing the dishes, sweeping, dusting, etc.), and so forth. When you engage in these activities you give the analytical functions of the brain something to do, when it is occupied, then the more creative, intuitive parts of the brain are allowed to flourish.
Of the activities I just described, I find meditation to be the most powerful of the sources because of its flexibility in application. You can use the meditative mind state to do many powerful things, that to the unpracticed seem magical, including "solving crimes!"
Look for more of this kind of content from our The Enterprising Investor online forum.
With smiles,
Jason