The Dream as Metaphor

During the nighttime my brain has tried to inflict a premature heart attack on me since I was a small child.
Last night I dreamt that a married couple and a blonde girl who I know in real life entered a large car. My friend knew the woman who was driving it, and they spoke a few words to each other before she took off. She was wearing shaded, circular, John Lennon-style glasses, and her hair was dark and in a small bun. I noticed that she was driving very fast on the left side of the road through back roads with the car in reverse and with her upper torso twisted around. At one point it appeared as if she had swiveled the driver's seat around completely and was reaching behind her for the steering wheel. I couldn't see the road that she was traversing. I felt the sensations that one should ONLY feel in real life-- total free fall and a car jarring around violently.
Usually when I have such dreams I have a panic attack in real life or yell something. However, in this dream I was totally calm-- even when my friend grabbed my hand. I thought, "Meh. There is nothing I can do. If I jump out it's certain death, but I have a chance in here-- plus this driver seems to know what she is doing... even if she doesn't.

It's just life."