The theory of the complexity studies phenomena like the climate, the economics, the mountain earthquakes formation, and the movement of some celestial bodies. The properties that characterize to these phenomena are: the wealth of information, the high sensitivity to small changes (the fluttering of a butterfly can change the climate of all the planet) and the impossibility to predict with exactitude.

From the theoretical point of view, the study of the complex systems has its beginning in the last century, when the mathematician Henry Poincaré proved that it is impossible to each other to calculate accurately the movement of three celestial bodies being attracted, like the Sun, the Moon and the Earth. The Theory of the Chaos, in its experimental form, was rediscovered in 1960 by the meteorologist Eduard Lorenz, when it observed that when modeling the behavior of the climate in the computer, the smallest variations caused very great changes in the results.

When you make any choice -any choice at all - you can ask yourself two things: First at all, "What are the consequences of this choices that I'm making?" In your heart you will immediately know what these are. Secondly, "Will this choice that I'm making now bring happiness to me and to those around me? If the answer is yes, then go ahead with that choice. If the answer is no, if that choice brings distress either to you or to those around you, then don't make that choice. It's as simple as that.
Spontaneous right action is the right action at the right moment.

At the moment you consciously make a choice, pay attention to your body and ask your body, "If I make this choice, what happens?" If your body sends a message of comfort, that's the right choice.

Only the heart knows the correct answer. The heart is intuitive, it's holistic, it's contextual, it's relational. It doesn't have a win-lose orientation. It taps into the cosmic computer- the field of pure potentiality, pure knowledge, and infinite organizing power- and takes everything into account. At times is may not even seem rational that is far more accurate and far more precise than anything within the limits of rational thought. 

Deepak Chopra