Duality is the interaction between two opposite kind of parts of a particular entity. But what should be the opposite of a particular thing or being? As the universe around a perceiver depends on the perceiver itself, so the opposite of that perceiver should be variant and dependent. The conclusion is – any two things of the same category can be opposite to each other as long as those two things possess some difference. Any two particles in this universe are different for their differing space time co-ordinates. If they weren’t, they should have merged as one particle. Two particles will interact with each other for their oppositeness or differences. Here duality becomes relative.
In physical world, any kind of difference produces events. Gravitational potential difference causes vertical motion. Density difference causes diffusion. Voltage difference causes electric flow. Temperature difference causes heat flow. Difference between mechanical forces or torques causes motion. So, every event in physical world that we can sense, is consequence of some differences. The more difference there are, the more intense the event is. And as end result , everything tries to get into an equilibrium state i.e. possessing minimum differences from each other.
Two particles will always tend to minimize the difference between their space-time co-ordinates. This is gravity.
Now let’s come to life. Living beings are differentiated into species. Creatures in same species have minimum differences within themselves. That’s why they stick to each other. Humans are socialized species. Wildlife within a single species lives and works like a team like a pack of wolves, a herd of deer, a group of migratory birds etc. Life within different species can possess much difference that one becomes food to the other. We know all this differences in evolutionary chain.
Even within a single species, there can be significant differences because of the existence of opposite sex. Male-female interactions can be quite troublesome as we can see clearly in human society. Failing to acknowledge each other as a single species we often treat other as non-human beings and objectify them. Focusing on un-necessary differences we often cause unnecessary turbulence or disturbance.
Now consider the case of a single being. Each of us is comfortable to interact with those with whom we have less difference in most aspects, who knows and understands us. We become close to them by connecting with them, sharing things with them.
You should choose a surrounding with which you have less difference. Do whatever you want to do in your life by taking little steps every day. Move towards your goal by making the amount of impact which your body and mind can take. Because Big difference is sum of small differences. (This is explained in thermodynamics as quasi-static process where the whole process is divided into many small steps. And in all those steps the system remains in equilibrium with it’s surroundings) And this is why, evolution is always better than revolution.
If we consider the end result of all kind of events, it should be that, everything will have minimum difference from each other I.e. everything will become one. And maybe that happens, at the center of a black hole๐๐. In the case of life, it’s destiny is to be one with everything, but more and more consciously.