 Yoga is essentially understanding, aligning your system with the cosmic geometry. See, in the yogic system, we see the body as 114 chakras, seventy-two thousand nadis meeting in hundred and fourteen junctions, which are called as chakras. Out of these two are outside your body, 112 inside the body. Of this 112, there are four about which you don't have to do anything. They are like that. If other things work, they will flower by themselves. So, there are only 108 with which you can work. So, 108 has become significant. If you wear any beads, people wear 108 beads, if they say a mantra, 108 because these are the 108 chakras that you need to work with. This 108 number is significant and you will see it in the east. Everything is 108 because the diameter of the sun and the distance between the earth and the sun is 108 times. The diameter of the moon and the distance between the moon and the earth is 108 times. The diameter of the earth and the diameter of the sun is 108 times. And in this body, there are 108 chakras that you can work upon. So, the cosmic geometry, I can go into a lot of arithmetic which will match with your human system. And these things we have been conscious of and that is how we came up with 84 basic asanas. Out of these 84, if you do twenty-one of them properly and you just master one, your system will get aligned with the cosmic system. Once it's aligned, everything that you need to know about the cosmos is right here.