Sitting next to me

A few months ago I got up early to go to work.  It was cold outside.  I was driving toward work and memories of my Grandma suddenly filled my head.  She had MS and my only memories of her were at the nursing home.  She was really only able to move her head.  We went to visit her every Sunday afternoon.  I remembered her soft silky pajamas that she liked.  I remembered watching science fiction theater with her in her room.  I used to help her when she asked for a drink of water.  I would get her white cup with a bendy straw and place the straw between her lips so she could drink.  I remembered watching my mother and grandmother visit. 

Then as I drove, her presence seemed so strong that I actually turned my head to see if she was sitting in the passenger seat. I didn't see her there.  But I felt her there.  I have wondered since that day, if her presence was there in my car.  If so then why?  Was she just checking in on me or protecting me?  I kinda like the idea that maybe she was just spending time with me.