The Spiritual Light?

I have been doing a lot of reading and more self understanding of being an empath and a telepath I believe now I experienced a lot more than that so I am feeling great now:)...my spiritual journey is awakening extremely, so I am not sure if this is part of my next spiritual step or is it my fear resisting?

This is a dream but I made contact with my deceased grandfather of almost 3 years ago.

I am with an old friend from middle school. She kind of had the rep for being the kind of "bad girl" but I know she had a good heart. The next thing I knew we were walking in my old neighborhood grocery store, as we were walking we stopped in front of a floating door, there was steam coming from it, and it was gold. She opened the door and as she went through she said, you can come see the light all you have to do is ask god...but, when I looked at the door it was pitch black through it, so I got really nervous, almost if having a panic attack. Then I look to my left, and my deceased grandfather was there. I gave him a big huge hug. I cannot explain the comfort and joy of that experience... I knew in my dream that I was connecting with him on a spiritual level. I knew he was deceased in my dream. I talked to him, he mostly just nodded up and down, then I woke up. Was he saving me from the light? What is the light? I have glimpses of this beautiful light in other dreams... Or Is that my fear of crossing into that step spiritual dimension? Any advice thank you! Love