There are distinct benefits to having one's own transendent experiences, to begin opening up to the realization of the divine, to the understanding that life is much more than meets the eye. Oftentimes you don't believe it if you don't see it.
Our path is an inward one. This is more difficult path, the more painful path. We bear responsibility, for our own learning.
This responsibility cannot be externalized and dumped on someone else, on some guru. The kingdom of the Divine is within you.
There is no direct correlation between psychic abilities and level of spiritual evolution.
The psychic abilities of some people increase as they progress spiritually, as they become more and more aware. This is more of an incidental acquisition rather than an essential step. One's ego should not become inflated merely because the level of one's psychic abilities increases. The goal is to learn about love and compassion, about goodness and charity, not about becoming famous.