“
If Bliss Brain is so desirable and pleasurable, why is it so fragile? Why can our brains be distracted from happiness by the slightest hint of a thought? Why is the demon’s slightest whisper enough to drag us out of bliss? Why are our brains hardwired for negativity? The answer is simple: That’s how our ancestors survived. Those who were the most responsive to danger lived. If your ancestor’s brain had a genetic mutation that heard the rustle of the tiger in the grass a nanosecond earlier, he started running a moment sooner. Genes that paid close attention to threats conferred an enormous survival advantage, as I illustrate in my book The Genie in Your Genes. People who were less responsive to potential threats died, and their genes were lost to the gene pool. Those who reacted to the smallest hint of danger survived, passing their paranoid genes to the next generation. In contrast, happiness provided little or no survival value. Fail to notice a beautiful sunset, ignore the sound of children singing, walk by a rose bush without smelling the blooms? Nothing bad happens. But miss the rustle of the tiger? That’s fatal. So thousands of generations of evolution have honed our ability to respond to even the most minuscule whisper of the remotest possibility of threat, and abandon happiness at the drop of a hat. Mother Nature cares greatly about your survival—and not at all about your happiness. That’s why the DMN defaults to worry, instead of to bliss. Mentally rehearsing future stuff that might just possibly hurt us, past stuff that definitely hurt us, and present stuff that might signal danger—all these are signs of a brain that is successfully practicing the strategies that ensured our ancestors’ survival. This isn’t bad. It’s just excessive for the safe modern world in which we live. If you’re at a construction site where a skyscraper is being built, you wear a hard hat and safety goggles. Such an outfit is entirely appropriate for that context. As attire for tea with the queen? Not so much. Although the DMN interrupts meditation, it plays a useful role in our lives. It is active when we are thinking about others, considering our safety, remembering the past, and planning for the future. It is also active in self-oriented and social tasks, including memorizing the experiences we collect during task-oriented activities. The path of your inner mystic will elevate you to enlightenment. The goal of your inner demon is to keep you safe. You can’t get enlightened if you’ve been eaten by the tiger.
”
”
Dawson Church (Bliss Brain: The Neuroscience of Remodeling Your Brain for Resilience, Creativity, and Joy)