When unhappiness follows happiness, how can you call it happiness? It is the happiness of delusion. Happiness should be permanent. This is nothing but temporary happiness; an imaginary happiness. What is every soul (atma) searching for? It is looking for happiness; happiness that is eternal. People believe, “It (happiness) will come from this or it will come from that. I will buy this. I will do that, I will build a bungalow, then I will be happy. I will buy a car, then I will be happy.” They keep on doing this but no happiness comes their way. On the contrary, they sink deeper and deeper into the mire of pain and confusion. True happiness, bliss, lies within. It lies in the Self itself. Therefore, if you attain the Self, you attain the (eternal) happiness.