Q: Since I was very little I have experienced seeing apparitions. They often scare me and make me feel very uneasy. I have since been put on medication and they have gone away. If these are spirits, why do they vanish once I’m on medication?
A: There is a gland in the middle of the brain called the pineal gland, which is also called the third eye because it has photoreceptors in it like the two eyes do in the retinas. Spiritual phenomena are by definition not physical (“spirit” comes from Latin meaning “breath”, which is a metaphor for things that are real but not physical, you can’t normally see or feel them physically), they exist on a different dimensional plane which is roughly speaking also where your soul resides, parallel to your physical body. The pineal gland is susceptible to influences from those other dimensions (like your whole body actually, since your soul is able to “steer” your physical body), and it enables perceptions to come in from those other dimensions into your physical brain to be perceived in a way that your brain understands as physically visual.
Of course it is possible to take medications that suppress the function of the pineal gland so that you no longer “see” spiritual phenomena, but they are still there and you can probably still perceive them in other ways, such as a sense that someone is present or someone is looking at you, or for instance you might feel an emotion that you don’t know where it came from etc (these things can be different for everyone, but in general the clearer one becomes the more easily one can perceive the subtle sensations coming from spirit).
But a drug that shuts down your third eye is like most other drugs, they all work by shutting down bodily functions. For example, if you use novocaine, you won’t be able to feel something touching you, even though it is still touching you. Similarly, with drugs you won’t be able to see a spiritual phenomenon, but it is still there and still impinging on your aura (the spiritual part of your body).