I've had trips like that but then I also had trips where I saw things like Pikachu, bees, jesters, machine elves (people-like things). But then the more I did it they got more defined and were just hallucinations of people (some were fictional characters). There was also progression from "feels like you're getting a message" -> "hearing something that's unintelligible" -> "hearing full sentences in English". I'm skeptical of the metaphysical or meaningful interpretations just because the more I did it the more nonsensical it seemed.