The Crown Is Not a Destination
Every chakra system you have ever read about treats the sahasrara as the finish line. Reach it and something wonderful happens. The Yoga Chudamani Upanishad, one of the more precise texts on the chakra system, does not frame it that way. It describes the sahasrara as the seat of pure consciousness, not a reward but a dissolution. The thousand-petalled lotus at the crown of the skull is where the individual self, the jivatman, either meets the universal self or stops being a useful category altogether.