Ilusion is the gap between what is supposed to be and what appears to be. Illusions galore in all walks of life, including our own body. When a body part doesn’t play its role, another body part takes over and in the process dupes our mind into believing that all is well. It is only over the years that diagnosis reveals that both body parts have deteriorated, sometimes irreversibly. Similarly, when an ostrich perceives a threat, it digs its head into the sand, giving it a false sense of comfort that the danger has been averted. Boiling-frog syndrome is another example of how an illusion can be fatal. A mirage, a rainbow and Aurora Borealis are all illusions of nature. The movies we watch are an illusion. All facial creams create the illusion of becoming a timeless wonder, more like a mannequin. Most advertisements for consumer products are as such. Come to think of it, even money is also an illusion since on its own, it doesn’t have any utility. Its utility is derived from its ability to buy other things which satisfy a want. But that, too, is restricted to the things money can buy. Some money in the bank acts as insurance which also satisfies a security need. But beyond a point, it is an illusion – because it derives no worthwhile benefit – which makes the world go round. So an inherent dichotomy about illusion is that even though it is not reality, it still makes people happy, at least momentarily.