Abstract: It was believed in the earlier part of the twentieth century that a person high on rational intelligence (IQ) will succeed in his life. Later, in mid 1990s, a theory was propounded that a person high on emotional intelligence (EQ), IQ being the same, has greater chances of faring well in life, for he is endowed with the capacity to manage his own and others’ emotions better. Towards the end of the century, it was highlighted that spiritual intelligence (SI), also SQ for short, is the ultimate intelligence, necessary for effective functioning of IQ and EQ. SQ allows human beings to be creative, to change the rules and to alter situations, giving us the ability to discriminate. Employing SQ one is enabled to differentiate between ‘right’ and ‘not right’ in the given framework of a society or a situation, listening to inner voice. Our brains are hard-wired for activation and utilization of SI, but most of the people let it remain dormant, missing out a richer quality of being.