Sorrow and happiness are the heresies of virtue; joy and anger lead astray from TAO; love and hate cause loss of virtue. The heart unconscious of sorrow and happiness – that is perfect virtue. One, without change – that is perfect repose. Without any obstruction – that is the perfection of the unconditioned. Holding no relations with the external world, – that is perfection of the negative state. Without blemish of any kind, – that is the perfection of purity.
