[finnmontserrat]

I find that most traditional forms of meditation can informatively be put under scrutiny with this in mind. Kasina disc & various formless meditations, such as the arupas - as well as perception-feeling-cessation - are clear candidates.

This line of inquiry can also result in some interesting conclusions with respect to jhana as the Buddha's discovery, rather than a common practice well known at the time. Since the Buddha rejected two popular formless attainments, and recalled a childhood experience, it is worth considering that the progression of jhana factors might be designed by the Buddha himself, and that they might not resemble the absorption and sense-less-ness with which they are often associated...