How does the spirit help? It keeps its distance while still maintaining a connection to the situation at hand. Think of the teacher and the student. There are various levels of experience. The teacher teaches from their perspective. They are feeding the student useful knowledge. Do they tell the student all the answers? Of course not because the student needs to learn on their own how to relate to what is being given. The student in turn goes out into the world and applies their knowledge. (Mountain above, Thunder below - Yi means Nourishing)
How does the body help? There is a field of view that is narrow. When one nourishes their body with the appropriate nutrients then the body maintains the proper mind set. A fat person indulges in what the body cannot process. The mind becomes lazy. A thin person is active and is able to think clearly on most days. (Water above, Water below - Kan means Darkness)
What is in parenthesis? This is how I learn from spirit. Free will is on both sides. I recently posted how I do this To Where Is This Awareness Going It is your free will choice to seek within. They are always willing to help. It may take some time getting used to their presence. Do not worry they will help adjust you to their frequency.
If you do not have a meditation practice of your own then I suggest to start one.
For Beginner Meditation - Listen to https://www.youtube.com/watch?v=WPni755-Krg with earphones on a low volume. Sit however you would like. I use a chair. Do not lean your head against anything. If your head begins to drop this means you are losing concentration or falling asleep. Set an alarm if you would like but nothing less than 20 minutes. Be sure the room is quiet. Cover the eyes with a blindfold or be in darkness. This allows you to see the images better. Think of nothing or just listen. If you begin to see images then relax and do not force an outcome. Here you may ask simple questions. Be sure to write everything down. Then use a dream dictionary to help interpret the symbolism. I use https://www.dreambible.com/ If you recognize a person in your mind then define their name https://www.behindthename.com/ and combine the meaning with a general trait that you see or saw in them. Unrecognized people can be described such as length of hair, color of hair, color of skin, type of clothing, etc.