Prophetic daydreams may stir up some surprising ideas about the future.
If you're going to learn something new and crucial to your life or career, you need to make sure that the learning is both rigorous and relevant. The knowledge, skills and understandings that you develop must be accurate and worthwhile; and what you learn must be something that can be applied directly to your daily life or work. Without rigour and relevance, the learning won't be as robust or as useful as you need it to be.
Often, the difference between success and failure is a matter of asking good questions. Good questions move you forward. Poor questions slow you down and misdirect you.