A Portal is a dimensional doorway(s) from the spirit world to ours. It is believed that spirits use these to go from one place to another. When portals are captured on film a circular pattern of orbs usually distorting the picture is seen. If you take pictures in dusty environments you will get similar pictures because of dust particles creating false paranormal anomalies. Portals captured on film can also look as if you are looking down the center of a tornado or vortex if they are captured from a certain angle. They sometimes show up on film as beams of light coming right out of a tombstone or even the ground.