Meditation cures a fault that has developed in our thinking. We suffer from a hyperactive mind. We are trapped in obsessive/compulsive thinking. We take “thinking” as an end in itself rather than just a means to an end. We never take a break from thinking. We are never truly happy.
When the Buddha Gautama said. “Nirvana is the extinction of dukkha.” He was giving us the psychology of peace-of-mind, conventionally called happiness. That sentence can be translated as, “happiness is accessed by abstaining from conscious mental activity. “ [while staying alert and passively aware.]