Immaterial Absorptions and cultivating wisdom Is it correct that only the 4 lower jhanas (rupa jhanas) are useful for cultivating insight (panna) because the meditator's mind is too absorbed when he enters successively the immaterial jhanas (arupa jhanas)?
In MN 70, the Buddha taught a seven-fold classification of practitioners. Depending on the various dominant faculties, the immaterial attainments are must-have to some class of disciples (ie. the "Liberated both ways", the "Body witness", etc.)..