 See, essentially the word Isha means that which rules the existence or that which is the source of this creation is Isha. So yoga means that which allows you to reach to that dimension. The important aspect of Isha yoga is, here we do not ascribe to any particular philosophy or belief system or even a certain form of yoga. This is about calibrating different methodologies of yoga for individual people. This is the most significant aspect of yoga that what you give for one person may not be suitable for another person, depending upon how you are or how each individual is. Accordingly yoga is calibrated, that's what is very unique about Isha yoga and it is transmitted, it's never thought.