Psychic Powers and the Kevatta Sutta (DN 11) In the Kevatta Sutta (DN 11), the Buddha seems to categorize "Having been one he becomes many; having been many he becomes one" as a psychic power, which is later seems to denounce "..I feel horrified, humiliated, and disgusted with the miracle of psychic power."

Yet, later in the sutta the Buddha classifies the same psychic powers (appearing as many) as miracles of instruction which are praised.

Can someone please help me understand this? 

Many thanks.
There are 2 things here.


developing supernormal powers
displaying supernormal powers


Developing supernormal powers as side benefit of meditation is welcome and long as they are used to teach and further the understanding of the Dhamma. E.g. Meditation master using though reading to see if the partitioner has understood the instructions. Also when meditating you goal should not be to be after these powers but just to realise the Dhamma but have them developed as a side benefit.

Displaying the powers for vanity is what is not encouraged.