There was a bird that wanted to learn how to fly and it came across a penguin who was willing to teach it. He desiged exercises such as jumping and then picking up little pebbles. One time the wind blew away one of the pebbles and the penguin told the bird to get it back. The bird spread its wings and flew over to the pebble, picked it up and placed it back to where it was. “Ok, let’s continue”, the penguin said. The bird, feeling uneased about this idea yet not seeming to be able to make out why, proceeded to do so.
The same situation happened to occur again but this time the bird replied: “I just flew, do you think it is needed to continue the exercise?” to which the penguin answered: “Yes, surely it is needed.” And both, after some hesitation, went on about the practice.
Eventually within the 3rd occurance of this situation the bird paused, went within closing its eyes, gave everything some consideration and then said: “I decided to stop learning from you. Thank you for everything” But when it opened its eyes the penguin was nowhere to be seen, glancing what seemed more like the shape of another bird shortly before it disappeared.