When your soul has an idea it's just a recollection of something you already know. Only your brain can have original ideas, so when your soul tries to come up with one, it's just a recollection of something you thought before now.
Your soul is sending you a recollection right now of... your past life as a farmer in Oklahoma (おく). You see yourself farming and sweating and living a wonderful life. Hmm, maybe you should move to Oklahoma and live the simple life again.
Currently there are no similar looking kanji which exist in the WaniKani learning system