Orbs are conduits, a narrow passage way or channel for information to pass. Other examples of conduits are things such as wires, tubes, piping etc...
Orbs don't only appear in haunted houses, they appear all around us, in our homes, our photos, people see orbs with the naked eye all of the time. They seem to come around more when a loved one is visiting you from heaven.
"Orbs are like channels from heaven..."
Laron(Bro's spiritual guide)
These orbs of light are actually what give 'physics' the ability to speak to the dead...
In a sense, they are not spirits, they are like the transmitters that convert spiritual energy into Electricity.
Which is essentially what our brain runs on.
