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In this modern age, people find it difficult to believe that human beings are able to fly, but such things were very common in ancient times when people had strong potentialities for spiritual attainments. Milarepa, who was a great practitioner of Heruka and Vajrayogini, at one time – as explained in his life story – told a large assembly of his disciples how he had gained the ability to fly. Through various methods, including his tummo meditation, he had released the central channel knots at his heart, navel and below the navel, and because of this he developed a very special physical suppleness that pervaded his body. This made his body extremely light, like a soft feather. At first he could only levitate but gradually he was able to move through space until finally he was able to fly like an eagle.
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