I don’t know if it’s a revolutionary way to think about it but I am inclined to consider meditation a practice of phenomenological control where you will experience that which you expect to experience based on your understanding of meditation from reading books such as the one you mentioned and from cultural osmosis from media depiction, conversation etc. All this of course is also dependent on your ability to actually exercise phenomenological control which can be affected a lot factors like your ability to maintain focus, openness to experience, comfort, environment and so forth. Dissociation is something that you are likely to experience but it is nothing to worry about just a consequence of being in a flow state. You are not changed into someone who cares any less about the world you are just temporarily focused on the task at hand.

Your mind is capable of creating whatever experience it decides to which could be “dissolving wants” or it could be “feeling revolutionary fervor guided by a great feeling of love”. The extent to which you will carry any attempt at changing behavior once you stop meditating is I think greatly exaggerated by the industry of meditation promoters but you will almost certainly feel less stress afterwards.

The best thing you can do is not put an expectation on yourself to achieve or experience anything in meditation. It will only psyche you out and make you continually question if you’re doing it right. It’s just relaxation with control of focus, everything else is a palor trick. If you feel relaxed then you’re doing it right and with time you will get better at controlling what you can experience.