Thank you for taking the time to share your thoughts on this, Andre. I appreciate it.

I wonder how likely it is that somebody would attain the most extreme form of enlightenment where nothing external affects them anymore. I also wonder whether it's a particularly healthy way to be. Is it detachment from reality? Because emotionally reacting to life events is all part of being a functioning human, isn't it? If we no longer feel emotions in reaction to life around us, maybe we will cease to be able to relate to others?

Susie Kearly gave an example of somebody she did some writing work for, who claimed to be enlightened, but as a result, seemed to not care about the feelings of others:

https://medium.com/illumination/eckhart-tolle-is-triggering-me-897eb7577b23

There is also a paradox with obtaining enlightenment. If somebody really wants to be enlightened, they need to let go of all desires, including the desire to be enlightened. But once they fully become enlightened, they no longer desire enlightenment, so they don't need it.

Or if we go with another definition of enlightenment, the dropping away of the sense of self. Once you no longer feel like a separate self, who is it that is enlightened? In that sense, nobody can become enlightened, because enlightenment involves the dissolving of the personal identity.