There is truth to certain aspects of astrology, and people who are mediums/clairvoyant (I'm not talking about crystal balls or "horoscopes"). I'm talking about the deeper aspects of astrology that go back throughout time. The full depth of astrology. Think of it this way, everything on this planet is connected to one another including the moon/sun. We need the sun and the moon to survive. Plants and animals need the sun/moon to grow and survive as well. Specific plants for instance, bloom during a certain time of the year and have specific characteristics compared to a flower that grows during a specific time of the year with the sun and the moon in certain phases/cycles.
How are humans any different when everything is connected? Place a horoscope to the side, which I haven't read in 15 years, if you study the deeper aspects of astrology, and observe humans, you'll start to notice the pattern, the confirmation.
As for mediums, etc, etc. There are the legit types, and then there are con artists. However a medium/clairvoyant, will tell you themselves that they aren't above you, they are simply more open to being guided by their senses/intuition. Personally, I've seen quite a few. One in particular, one of the sweetest old ladies I had met, would take a piece of paper, draw on it, and tell me what was going on in my life, past/present and future. She'd also describe people connected to me fully. She'd go in very specific details, no one would have known. I would take the predictions with a grain of salt. Yet, 95% of everything she stated, came about.
Was she God? Was a demon using her lol? No. Her senses were more open, she was simply more tuned in then most of us allow ourselves to be. I myself have dreams and many come about, they're either about people I know, or people I don't know, later meet and it's confirmed. Also, the name of the person who calls me appears in my mind before I answer it. I can also often feel people and know what they're going through whether or not I've spoken to them recently or if it's been months.
Another thing, I have a friend in his 40's who has seen spirits since he was a child up until now. It's not something he's asked for, it's just been the norm to him. Mediums are also used by detectives in some cases of murders, etc, etc.
Explore, play around. Keep a balance.