So this happened around 8 maybe 9 years ago, and just for some context during that time I had never researched about Angels or Demons or anything that would have imprinted Samael into my mind.
The dream: I remember my room being bathed in warm sunshine and that I felt happy and peaceful. I was standing in the middle of my room and sitting on my bed was a person, I remember referring to them as a male, he looked around my current age at the time - around 13/14 - he wore a white robe and had a white mask on. I remember leaning forward to look at the masks turn-up nose, finding it funny for some reason.
He never moved during my dream, never talked, but that didn’t stop dream me from laughing and enjoying myself. When I woke up I felt… comforted, almost protected, and with the name Samael in my head.
I joked with my friend the next day that I had met my Guardian, while doodling the name on my notebook.
A while later, something else happened, it wasn’t a dream because I remember feeling a physical presence. I had woken up sometime during the early morning and my room was filled with a warmth again. I was in a relaxed, drowsy state so I didn’t think to open my eyes all the way. And then next to where I was curled up, a weight settled itself, like someone had sat down, and the main thing going through me was a sense of peace.
So thats my experience, since then nothing has happened and it was only recently when I started researching Gods, Demons and mythologies that this came back to me.
I wondered why I didn’t think to just google the name all those years ago, but I think I was just scared of what I would find 
Now though I’m determined to delve deeper into this, and for that I need advice, I’ve never contacted any Spirits before and would like advice on how to proceed. Also, ideas on just why I had this experience would also be cool
sorry for the long post and thanks! 