Human beings have one interesting attribute. We all have our own point of views about the subjects that concern us. Often the source of these differences is our current situation, upbringing, past experiences and other factors. These differences generate great ideas, create chaos – even wars. All of us have travelled by trains. You would have observed that the town which looked so familiar to you when travelling in a car looks so different from the train. We even find it difficult to recognize some of the most common localities. It is due to the different points of views in the two cases. The same place appears differently from different vantage points – both correct, yet different. Imagine a car driver being guided by a person in a Helicopter. The person on the Helicopter can guide the car to the roads that appear free. From his position (hopefully high up in the sky), the person in the Helicopter cannot see if the free road has potholes or has any other issues. It