The White Figure

This happened to me a few months back. I was so scared I thought I might have let my mind create something. I don't know but I need your help!

I was getting ready for bed one night. As I was all cozy and warm in bed, I began to fall asleep. It was raining heavy outside as the thunder roared and lightning struck. All of a sudden, I felt something beside me, stroking my cheek. I opened my eyes and saw nothing, thinking it was the thunderstorm making me scared. I closed my eyes and nothing happened for a bit. My light suddenly switched on then off. I sat up straight away, seeing nothing. I started to cry and I felt someone hold me, trying to comfort me. I jumped up and turned around to see a man in his early 20's. He looked so sad and opened his arms, begging me with his eyes. I decided it was safe and went back into his ghostly arms, falling asleep peaceflly. When I woke up, everything seemed normal.

Now no one I know who is in his 20's passed recently. I've tried searching for an explanation but there's nothing. Do you think I was dreaming or hallucinating because I was frightened? Also I have seen him only when there's heavy rain, loud thunder and bright lightning.

I also have a few other experiences which you might want to hear. My stories aren't very long... Hmm anyway if you want me to submit another ask. If about 15 people ask I will submit another (One where I have been attacked). I hope you can help me, I am really confused and scared.