MAGENTA: Red orbs or balls of light, floating at eye level or near your face, are angelic probes conducting surveillance, just like the "alien probes" or "alien drones" in the TV series, Colony. The true colour of these energy beings is magenta / red-violet. Typically, ascended masters (angels) of the insect realm -- yes, members of some insect species have ascended after death -- volunteer to serve God as probes. The proper name for these elemental probes is Nophere.
The human avatars of angels called Nephalim are watched by the Nophere. The Nephalim are non-native imports, you might say. They were transferred to our Creator's universe when their own Creator's universe was annihilated. (Our Cosmos has many universes and each one is an experiment to see which traits produce the best human civilizations.)
The Nephalim angels can be quite bitter, because, no matter how high they advanced in the angelic hierarchy in the universe where they evolved, (which brings greater knowledge of the Cosmos), these now homeless angels are demoted to the lowest rank of angel, here in our universe. They must start their climb up the angelic hierarchy of ranks, from the bottom -- ascended master (6th Ray) -- even if they were Archangels (8th Ray) or higher, in the other universe.
When incarnate as humans on our planet, the Nephalims' avatars are watched by the Noph probes -- in case they are inspired, by their own angel, to break Cosmic Law or practice spell-casting, necromancy, geomancy, & other dark arts -- that is, go to the dark side. It was a Nephalim angel who inspired Adolph Hitler & his programs of war. That Nephalim angel has been annihilated.
Seeing a Noph does not necessarily mean you are ensouled by a Nephalim. Angels who evolved in this universe can have their avatars visited by a Nophere probe too. Seeing a Nophere in your own room means your angel (Higher Self) is being reminded (through you) to stay in line. Ask yourself, "What am I doing that's dangerous, cruel or offensive to the Higher Beings?".... then change your ways & ask the Higher Beings to forgive you.
BLUE: A cool blue orb with a dark nucleus is a different elemental called a Neliphere. Insect angels also volunteer to serve God as Nelipheres. But the Neliphere's job is to capture de-evolved ghosts that have dropped to the 1st frequency (1D) & lost their form. These are the black mists or clouds recorded by paranormal investigators. Nelipheres are found at work in cemeteries or church graveyards. They might "vacuum up" a 1D ghost from your home or barn. Nelipheres have been sighted recharging themselves from hydroelectric towers & power lines. They can have streams of blue electricity extending from their orb-like bodies.
Neither type of elemental -- Nophere and Neliphere -- are out to harm us. That is not their function.