I'm a clairvoyant who sees spirits visually.

Ghosts are real. Demons are real. Aliens are real. Angels are real. God is real.

Don't use a ouija board (especially by yourself), you will invite a demonic entity to attach to you. I can't tell you how many people I have had to help because of that one "game".

If you want to see a spirit, talk to God and ask to see one who lives in Christ.

Also, study Quantum Mechanics as mentioned above. Spirits and parallel dimensions are natural.