December 14, 2020
85% of external stimuli comes through your eyes.
The only sense that keeps you at a high beta frequency and can interfere with your thinking process is the focused sense of sight.
The moment you close your eyes your brain frequency can start to slow down into a more relaxed frequency of brain waves that's more conducive for thinking clearly and creatively.
In other words, it's beneficial to close your eyes while reflecting. With practice you gain the same benefits by keeping your eyes open.