See for example, the Buddhist descriptions of the jhanas, progressive levels of consciousness in which meditators peel back the layers of their personality, human awareness and end up in pure awareness and beyond. It's hard to read (and experience, albeit only the initial stage in my case) such things and not be left in little doubt that consciousness doesn't derive from thought like philosophers like to believe (no, Descarte, you are not just because you think).
It's for this reason I don't buy the AGI hype. Maybe after fundamental breakthroughs in computation and storage allow better simulations, but not any time soon since these traditions tell us consciousness isn't emergent. Most AGI researchers are barking up the wrong tree. Still, the hype boosts valuations so perhaps it's in their best interests anyway.
Philosophers can get so wrapped up in thoughts they say nonsense like "I can't comprehend not having an internal monologue", which you can experience any time you watch a film, listen to music, etc. Someone with only the smallest experience of meditation shouldn't fall into such thought traps.