If you are angry, and then happy, the next moment the anger passes away. Out of that anger you manufactured the next state. These states are always interchangeable. Eternal happiness and misery are a child's dream.
Swami VivekanandaAccording to this philosophy, each man consists of three parts - the body, the internal organ or the mind, and behind that, what is called the Atman, the Self.
Swami Vivekananda