From time to time, you'll experience a moment in which you can completely forget a commonly used word for something. While you are trawling your brain trying to remember that correct word, you'll find that trying harder doesn't ever seem to work. Finally, you let go and the right word just seems to pop into your mind a few moments later. Psychic impressions work in a very similar way. Therefore, you should never bother straining. Neither should you ever head directly toward what you want. Let go completely yet still remain open... including open to answers to questions you didn't even ask.