I don't know enough about consciousness to be able to discuss it in too much details and we'd need to talk about definitions before I could go much further with it in this discussion. The word 'consciousness' feels too imprecise.
I'll go into more detail about my current understanding. I welcome critique and discussion about it
Our minds have different modes of operating. We tend to rely on our intuition and impressions of things - we run mostly on auto-pilot. It takes effort to apply our minds to deliberate consideration of things. I propose that it takes even more effort to consult with our higher self when considering things.
Let me give you an example (it's not a great example!).
Let's say I'm presented with a big bowl of delicious food.
- My auto-pilot will want me to just eat all of that food, om nom nom.
- Some effort from my brain will make me think I shouldn't eat it all, because then I'll feel full and bloated and it will make me fat.
- Even more effort will make me consider where the meal came from, what it's made of, and whether eating it all - or even at all - is a proper and good thing to do. Perhaps then I'll think the meal has actually been made with ingredients that have been acquired in a morally questionable way, and that by eating it I am contributing to systematic cruelty. Then I might even decline the meal entirely.
I believe that in this list, number 3 would be equivalent to listening to your higher self. Listening to Guru Sahib.
One of the aims of Sikhi is to reprogram the auto-pilot so that #3 thinking becomes #1 thinking.
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Ah crap, have I just described Id, Ego and Superego? :O