How to assign your higher self and spirit guide to teach you while you sleep.

1 hour before bedtime, smudge yourself and your bedroom. Use a notebook and write a short petition to your spirit guide explaining the lesson you would like to learn while sleeping.
example:

I call upon my higher self and spirit guide, to teach me while I sleep. Tonight, I would like to learn about astral travel. Guide me in my dreams, each night, on the lessons of astral travel. I open myself to the vast knowledge out in the world on this topic. While I sleep, help me higher self and spirit guide learn, understand and remember the lesson shown to me. When I awaken from my sleep, continue to guide me to the information that will further my understanding of this lesson. Through the Goddess and God, All is Possible. Through my Higher self and Spirit guide, all is possible. Through my own desire to learn, All Is Possible.

Blessed Be, Aho, And So It Is.

Tap your third eye three times, tap your thymus three times, and tap the middle of your cranium three times to activate this petition.
Read the petition each night, until you feel sure of the lesson. During your awaken state, learn about the topic. Get a book or two on the topic and read from them before reading the petition. You can use YouTube guided meditations to help you understand the topic. The more you research on the topic while awake, the more you will program the subconscious mind. I believe learning is multidimensional.

Bright Blessings To Everyone!