With Poṭṭhapāda 1.19

1.19

‘And does the Exalted One teach that there is one summit of consciousness, or that there are several?’ ‘In my opinion, Poṭṭhapāda, there is one, and there are also several.’
‘But how can the Exalted teach that there both is one, and that there are also several?’
‘As he attains to the cessation (of one idea, one state of consciousness) after another, so does he reach, one after another, to different summits up to the last. So is it, Poṭṭhapāda, that I put forward both one summit and several.’