The "comes together" in the following is confusing. Is it just saying "an idea is formed in your mind"?
In the same way that learning-and-memory applies to understanding your situation, it helps you decide what action to take in the face of the situation. Quite literally, an idea comes together in your mind. Here we can apply the same distinction between expert and strategic intuition: Do the elements of your idea come just from your own experience (expert) or also from the experience of others (strategic)?