Physicists have indefatigably proven that energy cannot be destroyed. Being immortal, eternal and indestructible, energy can transmute in form. All life forms possess eternal auric energy emanations, otherwise understood as souls or spirits.
Simplistically, I liken the aura to the soul or spirit that leaves the physical body of every individual being at death. The colors in all beings eternal, indestructible auric energy, reflect each and every individual’s predominant thought patterns, emotional and mental state, potentials and level of spirituality. Auric energies within certain vibrational frequency bands manifest as different colors. In all beings auric energy form, each and every individuals predominant, auric colors lay us bare, depicting us clearly for all to see.
Humans are categorized as animals, primates and mammals, though many prefer to divorce ourselves from our four legged and winged animal relatives.
All animals and birds, the same as us human animals, experience Rapid Eye Movement Sleep, that is dreaming sleep. What hellish, daily nightmares millions of animals must have in slaughterhouses, laboratories and neglected, abandoned or other cruel situations! Further clarified in my above Proof Animals Have Souls Zoom Talk.