I am curious over a pattern I have noticed. I find dream imagery, or even when you observe deeper parts of your subconscious, it seems to communicate in metaphor. Obviously, right? I don't just mean in the obvious. Yes, I have taken notice of the 'knowing' and seen how those contents then translate into something completely random, in some effort to create understanding.
What has really caught my interest is seeing how this might be more multi-layered than I previous thought. There could be one layer the subconscious taking a 'knowing' and translating its contents into random imagery, and then another layer doing that same thing with that exact same content, but producing a complete different set of imagery. Those two different conceptions can then interact with each other, influencing the ultimate experience that waking "I" experiences.
Let's use a dream as an example. There was random dream imagery of my elementary gym, my kung fu mates and instructor. There was even my instructor's teacher, who I have never met, but he had a distinct feel. I told him I was sorry I was so quiet, and he replied it is alright because he centres himself there too. It ended with my kung fu instructor telling me about my death... I was punched twice, fell on my stomach, was kicked on my back, and then I was set on fire. I started to relive this burning, I was terrified to experience the burning of my flesh, and screamed, "Why are you showing me this?"
Now, underneath this dream there was a whole array of memories of a war I fought in the 1800s. I recall being sent to the next battle, which became my ultimate death as mentioned above. I ended up flying over this great stone wall in a forest to a platform, where this ball of light entered, I followed suit, and got to the black, but it was very different than all my previous experiences. It really was nothing, neither perception nor non-perception. I am not sure it was the 8th Jhana, if I am using Gotama's classification system of absorption, but I did definitely notice a difference from the black in all my previous experiences. The black it seems infinite but I find I can still centre myself. Here, I could not even centre myself. There was no mind activity in this place.