White Shapeless Spirit?

A few years back, when I was in high school I experienced seeing a spirit.

Usually, ironically to my name, Faith - I didn't really believe in the supernatural. My mother has always told me that being able to see spirits is in our blood line, but honestly, I thought that was complete bogus, until that night.

Well, I saw this spirit twice, the first time I had seen it was when I was sleeping in my room (My room was in the basement), the lights were all off in my room so seeing this spirit was somewhat blinding - it was uber white, and had no form. I was half-asleep at the time, so when I woke up, I just looked at it and went back to bed.

Now the second time, it happened in the basement again, but this time I fell asleep on our couch at around 5pm, but it was already dark outside and whatnot, so it was completely black in the basement. This time I woke up and this spirit thing was above me. At first I was in a state where I was half asleep, so looking up at it I smiled and put my hand up to touch it. As it went to go touch my hand, reality kicked in and I rolled over, jumped up and bolted upstairs into the kitchen where my family sat there staring at me like I was a mental case, LOL. Anyways, after that, my mom came in and told the spirit to leave, and I never saw it again.

I was wondering if this spirit was bad? Or good? I never got the idea it wanted to hurt me, just the opposite. This was my first and last spiritual encounter, so I've been curious about this for a long time.