Venerable, I found your post very well written. It has made me want to practice rupajhanas without the 5 senses even more!
Yes, I can only agree that the “hard” jhāna experience is pragmatically important, especially from an insight perspective. Insight is about the three characteristics, and jhāna gives you powerful direct experience of all three. Impermanence, for instance, as you point out, only becomes fully manifest when things disappear completely, that is, when they cease. This is so because you cannot possibly fully comprehend something while you are still immersed in it, like the tadpole in water. Only a frog, who has left the water, can have the perspective to understand it.
Personally, I don’t feel that it’s impossible to fully understand the 3 characteristics without being in a situation analogously similar to that of the frog out of the water (compared to the tadpole in the water), i.e. I don’t think it’s necessary to outright suppress our 5 senses to fully understand dukkha, anatta, and anicca.
The reason is the following syllogism.
Presupposition n°1 :
Human beings can also illusorily identify with their minds;
Presupposition n°2 :
rupajhana do not suppress the mind ;
Presupposition n°3 :
it seems that SN 12.70 implies that to attain liberation, it is not necessary to reach a meditative state that suppresses the mind, since this sutta says that to attain liberation, it is not necessary to reach the deep meditative states superior to the 4 rupajhanas ;
Presupposition n°4 :
Now, if liberation could only be attained by a person analogously similar to the frog out of water (without 5 senses), and if the reason for this is that as long as one is immersed in the 5 senses one is not fully aware of the associated identifying illusion, then to attain liberation it would be necessary to suppress the mind through a deep meditative state (since an identifying illusion can be associated with the mind in which one is immersed);
Conclusion :
So personally, I’d find it hard to say that “full understanding of the 3 characteristics can only be obtained if we suppress the 5 senses by rupajhana analogously to the frog, because otherwise we’re too immersed to notice the illusion”.
These are states of extreme otherworldly bliss,
When things cease, you also understand dukkha in a much deeper way, again because you have emerged from the thing that has ceased. When something is completely gone, you understand it’s true value, or lack thereof. And finally you get a deeper appreciation of anattā.
I mean, the jhānas are at the very end of the Buddhist path. They are almost always classified as a distinct category together with the four stages of awakening. They are praised throughout the suttas as exceptional. They are variously called the bliss of awakening, the footsteps of the Buddha, super-human qualities, distinctions in knowledge and vison worthy of the noble ones, etc. We should expect the jhānas to be at the very peak of profound spiritual qualities.
I don’t think this is the monopoly of senseless jhanas. I don’t see why jhanas with senses couldn’t be extremely pleasant, extremely powerful, extremely calm, and so radical that they would completely change our vision of our body, our mind, and the world. Maybe they wouldn’t be as radical as senseless jhanas, I don’t know. But I don’t see why they wouldn’t also be largely sufficient to take us a long way along the path; for example, if sense jhanas could bring about a total imbibition of pleasure in the physical body, this might imply that when the meditator comes out of jhana, he is much less attached to ordinary worldly pleasure. This is already a great step forward, I think. But in addition, if from the point of view of jhana with senses, we interpret AN 9.36 and MN 111 as instructions to practice vipassana while in jhanas completely imbibed with different qualities, then these jhāna with senses can also clearly be used to deepen our insight.
Here are a few impressions!