Parans occur when two or more celestial bodies are crossing the horizon and/or meridian at the same time. The horizon is where the earth meets the sky from wherever your are looking in all directions. The meridian is a circle that runs from the northern point of the horizon to the zenith directly above,  then the southern point of the horizon and to the nadir directly below.

       Where parans occur for an individual the nature of the celestial bodies involved bring their characteristics to the forefront for that person.