If you are a physicist observing the behavior of a subatomic particle, your very interaction with it causes it to change its behavior. This is common knowledge in the field of subatomic physics.
What scientists generally do not know is that if you, as the observer, can remain absolutely NEUTRAL while watching and observing a subatomic particle, then you will have no effect on it whatsoever. With absolute neutrality in mind, there is no expectation of any type of behavior on the part of the particle, therefore there is no interaction and hence the particle can do what it desires to do with no interference on the part of the observer.
In the field of yoga philosophy, to ability to be in a mode of observation of a thing or event and to remain absolutely neutral to what is occurring, to feel no thoughts or emotions stirring within, is to be enlightened. In such a state of mind, the yogi is causing no karma between himself and the world around him. He has no mental and emotional attachments within him that would cause any kind of reaction to what is happening around him.
Going one step further, this absence of attachment is the key to what is called Liberation. This is the mode of true freedom in life. When one has totally shed all attachments to this world then one can attain liberation from it, and earn the right to never be forced to reincarnate again.
According to one perspective, the way to attain such freedom is to “Be Here Now”. In simple terms, this means that your thoughts are not in the past, nor in the future, but rather right here and now. And in this moment of Now, one must be neutral to all things around oneself, all while simultaneously accomplishing your dharma, which is the work you are meant to do, with no expectation (attachment to future results) of a reward (getting good karma from the action) for your work. This is the way of liberation.
