This is why very often you find educated people in the media who look at spiritual books but they are so identified with their thought process, they don't get it. They write reviews or articles and they miss the whole point. They can't see the essence. It's not their fault; it's not them personally. It's the human condition and its mind-identified state. And intelligence in itself doesn't help. You can have two or three Ph.D.s; it doesn't get you any closer to spiritual realization. In fact, you might be more distant.
Teaching a practice can also be a hindrance if it becomes one's identity. To be a spiritual teacher is a temporary function. I'm a spiritual teacher when somebody comes to me and some teaching happens, but the moment they leave I'm no longer a spiritual teacher. If I carry the identity of spiritual teacher, it will cause suffering.
I don't want it to end, and so, as every therapist knows, the ego does not want an end to its “problems” because they are part of its identity. If no one will listen to my sad story, I can tell it to myself in my head, over and over, and feel sorry for myself, and so have an identity as someone who is being treated unfairly by life or other people, fate or God. It gives definition to my self-image, makes me into someone, and that is all that matters to the ego.
The reason why some people love to engage in dangerous activities, such as mountain climbing, car racing, and so on, although they may not be aware of it, is that it forces them into the Now - that intensely alive state that is free of time, free of problems, free of thinking, free of the burden of the personality.