If you're a good dreamer, ie you can remember your dreams quite well, or not since I don't really; you can ask your guides to let you know through your dreams. Write your question/request down and have it + a pen handy next to you by your bed. Guide dreams are different from normal ones. You awake from them refreshed and a minute or seconds before the time you're supposed to be awake, plus you will know it is different from your normal dreams.
Most importantly, know that you will receive guidance.