The inhabitants of both Siddhaloka and Vidyadhara-loka are naturally endowed with mystic yogic powers by which they not only can fly in outer space without a vehicle but can also fly from one planet to another simply by exerting their will. Just as fish can swim within water, the residents of Vidyadhara-loka can swim in the ocean of air. As far as the inhabitants of Siddhaloka are concerned, they are endowed with all mystic powers. The yogis in this planet practice the eightfold yogic mysticismnamely yama, niyama, asana, pranayama, pratyahara, dharana, dhyana and samadhi. By regularly practicing the yogic processes one after another, the yogis attain various perfections; they can become smaller than the smallest, heavier than the heaviest, etc. They can even manufacture a planet, get whatever they like and control whatever man they want. All the residents of Siddhaloka are naturally endowed with these mystic yogic powers. It is certainly a very wonderful thing if we see a person on this planet flying in the sky without a vehicle, but in Vidyadhara-loka such flying is as commonplace as a birds flying in the sky. Similarly, in Siddhaloka all the inhabitants are great yogis, perfect in mystic powers.