Invading dreams:)

Truthfully I dont think you can enter someone else's dream. However I have heard of people who have before. What you are talking about is a curse except not the part were you yourself is not actually in the dream. you can make them have nightmares about you using a curse if you can't find one on here you can make one yourself. Of course I don't actually think you should do that for no reason but it is not really my bussiness anyways. I hope this helped.

Bcharette is partially correct. It is called dreamwalking but you don't need to be near them or sprinkle water or any of that.

I dreamwalk frequently. You must first be able to be aware and sharp while sleeping (lucid dreaming). Then you need to know how to project to the other person while they sleep. It's possible to do so while awake, but the chances of them remembering is slim unless you authentically dreamwalk. It takes years of practice and experience, so please don't pm me asking me how. Remember, I said you have to be capable of lucid dreaming first. I've been able to naturally since I was a child.

A ritual won't allow you to invade a dream and control it. You might be able to make them have trouble sleeping or disturbing dreams through ritual, but that's assuming you have experience in successfully influencing the mind through magick.

Just do be aware, when you tred such territory, you are likely to meet the opposition of guardians, guides, and other protective spirits. Also, even if you're certain your target doesn't know magick, that doesn't mean he/she doesn't know anyone that practises. And that could turn out very badly for you. Always protect yourself and pick your battles wisely.

Is it possible that person will belive I was involved in that?

So you want to take over someones dreams? i dont think thats possible, the only way you going to be in their dream is if you dream walk.

You can invade dreams through astral projection.

You can also send them a nightmare of your creation, if your visualization skills are up to this.

Nightmares are one of the first signs that you may be experiencing psychic attack. Any experienced practitioner knows this, and will retaliate.

Think on these things

Blessed be
Dark Moon