Ghost that visit me in a dream?

Those are familiar spirits. They are not your relatives. They come to deceive you... So, that you trust them and end up trusting them all the way to Hell!

We all have dreams of people who we don't know in real Lifce.  In fact we often "dream up people" in order to tell a dream story.  Our minds are quite capable of creating other people, friends, relatives, etc. and in real Life those pppl don't exist.  This is the way your subconscious mind choses to tell you the story it wants to share with your own consciousness.  There is nothing to fear from this, and it is completely normal. The fact that he was sitting near the TV in your dream kind of makes me think of him as a character who stepped right out of a play you were watching, a movie, or a funny show.  

Please know that this ghost was NOT your relative.

The weird feeling you had was a red flag from your spirit that something is not right.This is a tactic Satan uses often to draw souls away from Christ, their true Savior, and towards false illusions. He is a deceiver, and he can dress up and appear even like an angel:

2 Corinthians 11:14

And no wonder, for Satan himself masquerades as an angel of light.

If he appears again rebuke him in the name of Jesus Christ, and call on the name of Jesus Christ. Satan wants your soul in hell and he uses these tactics to distract people away from the truth.

Then repent of your sins every day and ask Jesus into your heart, and ask Him for wisdom. We all need him today more than ever in our lives.

The dream might be telling you not to be aggressive or hostile when trying to achieve your goals, that kindness works better in the long run while aggression and confrontation only works in the short term - It could also mean not to bond or accept aggressive and hostile people if they seem confident and intelligent because there is no long term future with them 

maybe he wanted you to get to know him