What do you guys think about my nightmare?

So I had a nightmare last night.I am 16 and that was my second nightmare in my entire life.I have also been getting into LaVeyan Satanism and reading about Magick these last couple of days.I also cannot remember that last time I was truly scared,I have sped in the highway and almost crashed several times,I have been in a cemetery at night, and have felt no fear. I am not saying this to sound y but I am nearly impossible to scare.So to me its a really big deal that I had a nightmare where I was in my restroom and dark "shadows" started reaching towards me( I know that sounds cliche but I really did dream it) and I felt a VERY deep fear.I am guessing thats what true terror was,I mean i was scared to the point where I wanted to cry.and i felt all this while dreaming.back to my dream,so the shadows are chasing me and I go across the hall to my room and get on my knees and pray and ask forgiveness from god and just like I felt fear,I felt how sincere my apology was and it was as sincere as possible.Then god forgave me and I felt peaceful like never before.Do you guys think this is a signal?a coincidence? or do i feel guilty about going against what my parents raised me for? To be honest I still dont feel like I could sincerely ask for forgiveness from "god" so that confuses me because I would expect an experience like that would change a person.What do you think?