Well, I see that such a bhikkhu is first dwelling withdrawn both mentally and physically. This supports mindfulness being established for one who “recollects that Dhamma and thinks it over”, which seems to be your “thinking deeply about”. (Can one establish mindfulness in this specific awakening-factor way without being physically withdrawn? Surely to some extent; but I suspect that’s insufficient to properly support the other factors…)
Yes, I agree that withdrawal is beneficial and generally necessary.
They then “discriminate that Dhamma with wisdom, examine it, make an investigation of it”, which seems to be your “analyzing and investigating it with wisdom”. (Having you put these two ideas together into one sentence seems to cloud the issue, as I see it, by combining two factors into one description).
I think “discriminating with wisdom”, “examining”, and “investigating” are all to be taken as near-synonyms, although each has its own flavor.
This “with wisdom” is the key addition; someone thinking over the Dhamma is establishing sati, not dhamma-vicaya. To examine “with wisdom” is to examine, not a doctrine, but “that state”:
…i.e. “that experience”, “that satipatthana”, “that set of aggregates”.
That’s a fair argument. I was taking the dhamma under investigation to be the same dhamma that one was mindful of, namely the dhamma that one heard from the inspiring bhikkhu. I’m not sure if the grammar necessitates taking it one way or the other. Perhaps Bhante @sujato or Bhante @Brahmali would know whether the dhamma under investigation is the dhamma one heard or the state of being mindful of the dhamma that was heard.
(See again SN 46.3 )
Taṃ kissa hetu? Tathārūpānaṃ, bhikkhave, bhikkhūnaṃ dhammaṃ sutvā dvayena vūpakāsena vūpakaṭṭho
viharati—kāyavūpakāsena ca cittavūpakāsena ca. So tathā vūpakaṭṭho viharanto taṃ dhammaṃ anussarati anuvitakketi.
Yasmiṃ samaye, bhikkhave, bhikkhu tathā vūpakaṭṭho viharanto taṃ dhammaṃ anussarati anuvitakketi, satisambojjhaṅgo tasmiṃ samaye bhikkhuno āraddho hoti; satisambojjhaṅgaṃ tasmiṃ samaye bhikkhu bhāveti; satisambojjhaṅgo tasmiṃ samaye bhikkhuno bhāvanāpāripūriṃ gacchati. So tathā sato viharanto taṃ dhammaṃ paññāya pavicinati pavicarati parivīmaṃsamāpajjati.
Yasmiṃ samaye, bhikkhave, bhikkhu tathā sato viharanto taṃ dhammaṃ paññāya pavicinati pavicarati parivīmaṃsamāpajjati, dhammavicayasambojjhaṅgo tasmiṃ samaye bhikkhuno āraddho hoti; dhammavicayasambojjhaṅgaṃ tasmiṃ samaye bhikkhu bhāveti; dhammavicayasambojjhaṅgo tasmiṃ samaye bhikkhuno bhāvanāpāripūriṃ gacchati. Tassa taṃ dhammaṃ paññāya pavicinato pavicarato parivīmaṃsamāpajjato āraddhaṃ hoti vīriyaṃ asallīnaṃ.
I think to examine the dhamma with wisdom is to examine it dependent on seclusion, dispassion, cessation, leading to letting go. In this case, the dhamma in question could be the teaching, could be some state such as mindfulness, or could be experience as apperceived via sense-spheres, aggregates, or in some other way. As long as the investigation leads to growth in the dhamma, it is dhamma-vicaya. Whether one is calmly examining the meaning of a sutta, or whether one is a non-returner examining that equanimity dependent on which there is a remainder of appropriation in them, as long as the examination is for the purpose of growth in the dhamma, for the purpose of letting go, then I think it is appropriate to consider that under the dhamma-vicaya factor for awakening.
The support for being able to investigate with wisdom (dhamma-vicaya) is mindfulness of doctrine paired with unremitting mindfulness via satipatthana.
I just don’t see the suttas as necessitating a narrow definition of dhamma-vicaya. While certainly sati is always involved, and any experience can be categorized or viewed via the four establishments of sati, I don’t see the explicit taking up of satipatthana as a requirement. Except of course that whenever one is mindful of cultivating the factors of awakening one is engaged in satipatthana regarding dhammas.