[90] "And moreover, venerable sir, this is unsurpassable: the way the Blessed One teaches the Dhamma concerning the kinds of psychic power (iddhi). There are, venerable sir, these two kinds of psychic power. There is, venerable sir, psychic power that is with taints (āsava), with acquisitions (upadhi), which is called 'not noble.' And there is, venerable sir, psychic power that is without taints, without acquisitions, which is called 'noble.'
And what, venerable sir, is the psychic power with taints, with acquisitions, which is called 'not noble'? Here, venerable sir, some ascetic or brahmin—by means of ardor, by means of striving, by means of application, by means of diligence, by means of right attention—attains such concentration of mind (cetosamādhi) that, when the mind is thus concentrated, he experiences the various kinds of psychic power: having been one, he becomes many; having been many, he becomes one; he appears and vanishes; he goes unhindered through walls, through ramparts, through mountains, as if through space; he dives in and out of the earth as if it were water; he walks upon water without it breaking, as if upon earth; seated cross-legged he travels through the sky like a winged bird; with his hand he touches and strokes even this moon and sun, so mighty and so powerful; and he exercises mastery with his body even as far as the Brahmā world. This, venerable sir, is the psychic power with taints, with acquisitions, which is called 'not noble.'
And what, venerable sir, is the psychic power without taints, without acquisitions, which is called 'noble'? Here, venerable sir, if a bhikkhu wishes, 'May I dwell perceiving the unrepulsive in the repulsive,' he dwells perceiving the unrepulsive therein. If he wishes, 'May I dwell perceiving the repulsive in the unrepulsive,' he dwells perceiving the repulsive therein. If he wishes, 'May I dwell perceiving the unrepulsive in both the repulsive and the unrepulsive,' he dwells perceiving the unrepulsive therein. If he wishes, 'May I dwell perceiving the repulsive in both the repulsive and the unrepulsive,' he dwells perceiving the repulsive therein. If he wishes, 'Avoiding both the repulsive and the unrepulsive, may I dwell equanimous, mindful and clearly comprehending,' he dwells therein equanimous, mindful and clearly comprehending. This, venerable sir, is the psychic power without taints, without acquisitions, which is called 'noble.'
This is unsurpassable, venerable sir, concerning the kinds of psychic power. The Blessed One directly knows this without remainder; and for the Blessed One, who directly knows this without remainder, there is nothing further to be directly known, by knowing which another ascetic or brahmin could be more highly endowed with direct knowledge than the Blessed One—that is, concerning the kinds of psychic power."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.