The transition from purgation to mystical union

"Blessed are the pure in heart: for they shall know God."
Matthew 5:8
"Not by the slothful, nor the fool, the undiscerning, is that Nirvana to be reached, which is the untying of all knots."
Buddhist scripture
".... man can transcend the subject - object dichotomy and achieve a total union of subject and object, in which all objectness vanishes and the I is extinguished, Then authentic being opens up to us, leaving behind it as we awaken from our trance a consciousness of profound and inexhaustible meaning."
Karl Jaspers, Way to Wisdom (Yale Univ. Press, New Haven, 1954)pp33-34.