Indeed, a solid narrative is dangerous. Consider a 'solid' narrative that seems fine at first sight: you tell yourself constantly that you are happy to just be able to be here, and that you are whole with the world. It would somehow feel very liberating to you, but at the same time having the danger of not trying one's best, of not taking care of self and others. Exactly the effect of drugs.
But I think the example is bad. If you actually experientially know you are whole with the world, I think it would push your limits and take care of others even better.
People don't tend to take care of others because of the idea of separation between you and me. It's the cause of all wars. People tend to do things good for themselves or who look like themselves.
I was more thinking about an exaggerated example, people who simply convince themselfs that they are happy (LSD-like happy), it will not advance others and also not themselves in the long run.
