Does the Creator of the Universe resemble the anthropomorphic description of God as depicted by the main religions? And does such a supreme being really care about the fate of mankind? If life senselessly ends at death, what purpose does a human strive for during his brief passage on Earth? Shouldn't he strive to contribute to mankind's collective well-being, and incidentally his own, rather than dogmatically obeying commands from a bygone era? In short, is it possible to be both realistic and happy? And what is true happiness beyond what religion or capitalism tries to sell us? With the exponential increase in the use of anti-depressants, we sadly cannot claim that all is well in society. But in order to repair a watch, one must first understand how it works. Fortunately, recent scientific discoveries decisively unveil the biological mechanisms underneath the hood of happiness.