This is one of my favorite sites of all time. It’s extremely educational, please look around it thoroughly:
“God in Vodou is most often seen as distant and not readily accessible to humans. Yes, Vodou is a monotheistic tradition. Oftentimes, God is considered as not accessible because simply “he is too busy.” Meaning that God has the whole universe to take care of, he has many things to do. This is understandable. We see God in the same way Roman Catholics do. He is a good, kind, loving God. Most Vodouisants are also Catholic. We attend mass and church services. One thing about God is certainly true, we listen about God (when we go to mass), we hear about God, but we do not see God. We worship God. Due to all of this, God has invested power in the spirits we know as Lwa.
“The Lwa, unlike God, are readily accessible to us. A Lwa is, at its most basic definition, a spiritual entity. We, Vodouisants, do not worship the Lwa. The Lwa are served. We serve the Lwa by giving them their favorite foods, wearing their colors, observing their sacred days (by abstinence), through Vodou ceremonies, etc. The Lwa in turn serve us. They confer upon us material blessings, physical well being, protection, abundance, etc. See this is a double sided matter. Without us the Lwa would not exist, and without them we would cease to exist as well.
“Everyone in the world has Lwa. The most significant of the Lwa that may walk with an individual is the Lwa Met Tet. Met Tet literally means Master of the Head. This is similar to what some would consider a Holy Guardian Angel. The Lwa Met Tet of an individual is that individual’s personal guardian. The identity of the Met Tet can be that of a Rada lwa, a Petro lwa, a Gede Lwa, or even a personal Djab the individual has with them.
“You do not choose your Lwa met tet. Just as you do not choose your own Mother or Father. You are born with this Lwa. The Lwa are said to “live in the blood” of an individual. This makes perfect sense, as blood itself is life. That is another reason why loss of blood is so draining, it is in part like losing some of your own power and force, weakening the lwa in your head. Although the lwa reside in the blood, the Met Tet, as named, abides in the head of the individual. This Lwa, as well as the Lwa who walk with the person, are separated from the individual at the time of death. They may then leave or be inherited by someone in the person’s spiritual or biological family.”