Rock Rose is for terror such as may occur after being in an accident or having a near escape, or from witnessing an accident. When under acute threat - such as a natural disaster, sudden illness, a mugging, etc., there is a sense of frozen fear and helplessness.
A similar state of terror may occur as the result of nightmares.
The Rock Rose state is usually brief, related to a particular crisis.
The positive potential of Rock Rose is courage and presence of mind; the person who is calm and self-forgetful in emergencies.