There are three levels of humans in Gnosticism.
1. Hylicoi. These are the people that cannot understand spiritual knowledge, and are essentially animals running off of autopilot.
2. Psychics. In Gnosticism, this means something very different from "psychic mediums" or ESP stage magicians. It refers to a class of people that may be religious or intellectual, but are incapable of getting into mysticism. They can understand surface-level spiritual truths, and they can even be very intellectual, but they're incapable of the deeper, intuitive understanding. They are capable of free will, however, which means choosing to follow your intellect rather than your emotion based off of analysis.
This is different from being rational and being reasonable. It's a way of intentionally living, or manually falling into an almost dead ego state, from which you can discern things without judgment. This isn't something all psychics do intuitively, many of them have to be taught the process.
3. Gnostics. These are people who are likely to forego exoteric religion and are capable of understanding the necessity of wisdom before intellect. Not all Gnostics become mystics, or even practice Gnosticism, but they have the potential to. They still have to be taught some of the methods to achieving salvation, but they have ways of reconstructing or learning that on their own; it just takes a lot longer that way.
These divisions can be understood as a bell-curve, with the vast majority of people (around 80-98% according to different calculations) fall squarely in the first category. These are the people that will have intense spiritual experiences, but will either re-interpret them through their religious framework or discard them while offering naturalistic "explanations" that rarely actually explain the underlying phenomenon.
Neither of these first two orders are really worth talking to about higher spiritual knowledge. They can't comprehend it. While the higher-end of the psychic class can be informed by gnostics, the majority of them can't even tell the difference between a gnostic and a psychic. Which isn't to say that gnostics are omniscient on those matters, but birds of a feather flock together. They have a much easier time finding like-minded practitioners.
So I ordinarily try to not waste my time attempting to convert other people. The gnostics will ask me on their own, and while I can help them find their path they're likely going to figure out a lot of the little tricks themselves by pure intuition.
There's no real reason to go out of my way trying to get anyone to "believe" the same things that I do. Either they're open to those experiences, and I will teach them if they're able to learn, or they aren't.