Buddhacarita by Ven Asvaghosa - Ancient Buddhist Texts

Buddha-carita, or Life of Buddha - 150
55. ‘Upon this stage some teachers make their stand, thinking that it is
indeed liberation, since pleasure and pain have been left behind and
there is no exercise of the intellect.
56. ‘But he who, immersed in this ecstasy, strives not for a further
deities.
57. ‘But he who, having attained such a bliss desires it not but despises
it, obtains the fourth stage of contemplation which is separate from
all pleasure or pain.
58. ‘The fruit of this contemplation which is on an equality with the
sdom call the
59. ‘But rising beyond this contemplation, having seen the
imperfections of all embodied souls, the wise man climbs to a yet
higher wisdom in order to abolish all body.
60. ‘Then, having abandoned this contemplation, being resolved to
find a further distinction, he becomes as disgusted with form itself as
he who knows the real is with pleasures.
61. ‘First he makes use of all the apertures of his body; and next he
exerts his will to experience a feeling of void space even in the solid
parts.