Panic in a dream usually names an urgent threat that feels bigger than your ability to respond to it in the moment -- a loss of control that arrives suddenly rather than building gradually. It often surfaces when a real situation has escalated faster than you've had time to adjust to, leaving you scrambling rather than steady.
The swift and various motions of the Planets are to be considered, as also their slowness, because when they vary, the accidents of the Aspects do alter. - William Lilly (1602.-1681.)