I've had a lot of folks show up during the last 25 years with the concern that they're "crazy" because they hear voices. When I meet with clients who are hearing voices that others may not hear, my goal is to determine whether or not the voices are related to psychoses (like schizophrenia), medication and/or drug use, or whether or not the individual is intuitive or highly sensitive.
There are some relatively simple questions that enable clinicians to determine which phenomenon is actually occurring and once we can move past that, we can get down to the task of managing "the voices."
I have a number of colleagues who work with psychototic people to diminish the voices or the impact that they're having. Often, supportive care and medication is the best combination for that. And, while I treated psychotic people in the early part of my career, it's not in my wheelhouse anymore.
For those who are strung out on illicit or prescription drugs and hearing voices as a result, I have a wonderful roster of clinicians and facilities that can be very helpful with the recovery process and much of the time, this is a successful way to resolve the voices.
When it comes to the spiritual sources for "voices", you've entered my wheelhouse. Born clairvoyant, I often saw things that other people couldn't, leaving me feeling weird and isolated. Eventually I got into training to harness my gifts and they became an amazing complement to the work that I do as a coach and psychologist. So, for those that are perhaps hearing messages from the beyond, feel free to contact me and we'll get you sorted out!