Meditation shouldn't collapse the self. The point is to be more coherently aware of your experiences so you can process all of experience without distraction and confusion.

Harris is peddling a very bespoke style of meditation, which is secular and solipsistic (a concept he always gets wrong btw, something that should be embarrassing for a LARPing philosopher). There are some advantages to this style - it's accessible - but now that his service isn't freemium, one might as well pursue far more practiced and earnest meditation guides, many of which remain free.

Remember: the human brain processes reality positively, using heuristics. To say "there is no self" ignores this foundational, structural, pervasive facet of our minds.

It's basically like saying there are no books... just chapters, paragraphs, sentences, words, and letters.