[Rurcextedutty]

an interesting essay related to this topic is by Bhikkhu Bodhi about stream-entry & jhana (here), where Bhikkhu Bodhi clearly demonstrates how jhana is never mentioned in the suttas as an attribute of the stream-enterer

for the stream-enterer to make a clear vipassana breakthrough, some amount of samma samadhi is certainly necessary because the stream-enterer has entered the Noble Eightfold Path

hi Andy

i think the point above most definitively demonstrates the reality of access concentration

it is clear the suttas state a stream-enterer is both an enlightened being and generally a non-attainer of jhana

the stream-enterer has developed the Noble Eightfold Path although not yet reaching jhana

thus there is a level of concentration which nurtures clarity of insight (vipassana) but has not yet fully eradicated the underlying tendencies to defilement

no need to dream about jhana. whatever level of samatha/vipassana can be developed is fulfilling & worthy

kind regards