Dreams are usually a bunch of things all mixed together:
What part of each dream is what if for you to decide, really, as it’s not just the visuals that count, but more, how you FELT and what intuition you have about it. Since most people never post those things bt only what they saw, our information is incomplete and I would not trust the answers, but sometimes a flash of insight, or the right question can help anyway.
So,
then…
This sounds like a wish-fulfillment dream.
Unclear what this means. Are you saying that her dream of you and Obeah Man gave her the impulse to come and tell you about it in real life?
Did she know you have been calling the ancestors?
If she already knew of your efforts to make contact, this could also be a wish fulfillment dream. But in any case, I would call this an invitation from Obeah Man to reach out.
I say this because dreams or no, just your desire to reach out is also an invitation, as you may not have that desire if they were not already calling to you.
But now you know this Obeah Man could be the key to beginning that contact. Perhaps he is one of your ancestors. Since your mother has has seen him, you have a connection through her and he is aware and waiting for you to call, so you can evoke him, or use shamanic journeying to go to where he is, to meet him and talk.
I suggest you get into meditation, call to mind all that you know about him, picture your mother’s dream scene and go into the dream and ask the man who he is and what he wants.