These orbs are common, many people see them. There are different causes for them, but the one thing that is common about them
is that they are all energy. Everything is comprised of energy: all forms of Spirit, all emotions, thoughts etc. are made up of various
vibrations of electromagnetic energy.
Sometimes these "blobs" of energy, particularly the ones we see closest to us, are manifestations of our own energy.
Particularly when one is experiencing a strong emotion (joy, anger, laughter) that person may emit a ball of energy - a thoughtform.
Other times we will witness "paranormal" activity or spirit energy in the form of an orb or ball of light. Sometimes the light has color to it, and
reflects the type of thougths/emotion etc most prevelant in that energy. Mediums will often see or feel the energy of one who has crossed. Many times we experience these visitations ourselves and
can pick up on the energy pattern of the soul who is contacting us.
Sometimes we can also witness balls of energy around various shifts in atmospheric energy. Some people may see strange lights or wisps or orbs before a thunder storm, or
when there are solar flares etc. Again it is the witnessing of energy patterns.
All things emit energy, our thoughts are powerful, and many people don't realize just how so, because we are not taught how
our thoughts/emotions effect "reality" in our physical realm. One "scientific" study was done on the power of prayer for instance. A group of patients was divided in half,
half were prayed for by strangers, and the other half were not. None of the subjects knew that they were having prayers sent to them etc. It was proven in this study that
those who were prayed for, even though they were not conscious of it, showed marked improvement over the group who was not prayed for. The act of prayer releases healing energy and that energy is then directed to the person(s) you are praying
for... it is a way of manifesting through the power of thought and directing ones energy in unison with Divine will.
Energy is everything, it is in everything we encounter, in every thought we have etc. Therefor there are many ways that we witness energy, and many ways that energy effects us. As we become more sensitive
psychically and spiritually we tend to become more sensitive to all types of energy and may witness these energy patterns in a variety of different forms.