We are told swans can sift water from milk. This may not be true, but the belief is an allusion to the natural phenomenon that birds have innate intuitive knowledge about the art of living together. Here is how and why?
When swans traverse the sky for going from one place to another, they fly in a formation of >, that is the English alphabet 'V'. Have you ever tried to know as to why do they fly in this orderly configuration?
Ornithologists say when the swan that leads the flock flutters its wing in a bid to fly, it produces a lot of energy. This energy helps the swan following him and the ones behind, fly with ease sans much effort. In this process, each bird gets energy from the bird ahead of him, and the flight of the whole flock continues for hundreds of miles.
When the bird leading the flock gets tired, he comes at the rear, and another swan takes over the charge to lead the aerial navigation. And this process continues.
What do we learn from this natural phenomenon?
A unique example of co-existence, one hardly sees among human beings. We learn that there are wonderful things in nature which man needs to understand and imbibe. We learn that animals live and move in herds, that birds of a feather flock together, that there is bonding among the animals and birds of the same species, that there exists a fraternity in the wild which teaches us the art of living together.
Lord Krishna propounds the philosophy of "loksamgraha" that stands for the unity of the world. If the world is not to sink into a condition of physical misery and moral degradation, moral ethics must control social action. Only then one can hope to live happily and successfully.