Wisdom vs concentration:
In Shurangama sutra, Ananda reached 1st stage stream entry, but He
study Mahayana. Buddha preached about half way, Ananda was
Enlightened already and praised Buddha. Purnamaitreyaniputra, a 4th
stage Arahat, saw Ananda's reaction, was confused, how a stream
entry could understand what Buddha said, but an arahat couldn't.
Buddha explained, there's 2 kind of obstruction, sentient being
have. They are affliction obstruction(fan nao zhang/jian si) and
doubt obstruction(suo zhi zhang). Ananda was heavy on affliction,
so He did not reached 4 stage arahat. However Ananda was light on
doubt, ie He can see things as they really are(Kan po). So Ananda
had difficulty renoucing(fang xia) than Purna. Purna is direct
opposite. Purna was light on affliction and heavy on doubt
obstruction. So Purna could let go easily.
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