"So we come to the next important sutra and that has to tell us about the various tips of yoga and how they work. They work at reducing the various hindrances, impurities and make it easier for subsequent yoga. Basically what we have to understand is that yoga would mean overcoming of the Kleshas - overcoming of those defects which we keep on talking about - Avidhya, Asmita, Raga, Dvesha, these have to be overcome and this overcoming work is carried out by the various techniques. So that's what the sutra is telling us, that when we follow yoga, we are actually working at overcoming these kinds of hindrances. We can't just forget that. We can't just talk of yoga and believe that we will land into the yogic land. Things like untruth, these have to be overcome.