āsīvisa sutta
Āsīvisa Sutta：1．āsīvisa Sutta．-Preached at Sāvatthi．
Man has to tend four snakes of fierce heat and fearful venom -
the four mahābhūtas; he is constantly followed by five murderous foes - the five upādānakkhandhā; he is pursued by a murderous housebreaker with uplifted sword - passionate desire （nandirāga）; while trying to escape them，he wanders into an empty village，where everything is empty - the sixfold personal sense sphere （ajjhattikāyatana），and into it come village-plunderers - the six fold external sense-spheres （bāhirāyatana．） Fleeing from there he comes to a broad sheet of water beset with danger on the hither side; the further side is secure from fear，but there is no boat and no bridge - the fivefold flood （ogha），the hither shore being sakkāya and the further shore nibbāna．S．iv．172-b．
2．āsīvisa Sutta．-There are four kinds of snakes in the world：the venomous but not fierce，the fierce but not venomous，the one that is both and the one that is neither．Similarly there are four kinds of persons：the one quick to get angry but with short-lived anger，the one slow to get angry but with lasting anger，etc．（A．ii．110-11）
āsīvisa Vagga．-The nineteenth chapter of the Salāyatana Samyutta of the Samyutta Nikāya．J．iv．172-204．