Snakes are symbolic of different things. Your dream of the dead child inside the snake sounds like a classic dream of the snake being a symbol of transformation. Snakes are often seen as symbols of life, death and rebirth. In North American native tribes, the shedding of the snake's skin is associated with life and a new beginning.
In writing about Snake Symbolism, Gillian Holloway, Ph.D. wrote, "People who are dying or who have lost a loved one often dream of snakes, at or near the time of death. For whatever reason, these dreams seem
involved with the psychic awareness of the transition from this life to the next...."
Carl Jung talks about a similar connection between earth and heaven in his discussion on the snake as a symbol for medicine. In Man and His Symbols, he writes, "perhaps the commonest dream symbol of transcendence is the snake, as represented by the therapeutic symbol of the Roman god of medicine Aeseulapius, which has survived to modern times as a sign of the medical profession. This was originally a nonpoisonous tree snake; as we see it, coiled around the staff of the healing god, it seems to embody a kind of mediation between earth and heaven."
Snakes are also seen as symbols representing evil. The bible uses the symbol of the serpent in the Garden of Eden to represent Satan. In other cases the snakes is seen as a phallic symbol.
Recurring dreams indicate a fear or an unresolved issue. One way to deal with the recurring dream of the snakes is to try lucid dreaming. This is when you become conscious in your dream and are aware that you are dreaming. If you are able to do this, then ask the snakes what it is they want and why you keep dreaming about them? If the snakes are hostile and you are afraid in the dream then face the snakes and master the situation in some way. Seeing the dream through to the end is important in overcoming it.
You will have to look at your dream in its entire context and determine how you felt about the snakes in the dream. You should also look at the other associations in the dream. You said they were in the backyard. Why were they in the backyard? What sort of association do you have with the backyard that might account for the snakes being there?
I had a dream about two black snakes chasing me and one of them bit me then I
woke up all sweaty. Could you tell me the significance of the snakes?
It would depend on the association you had with the dream. Did you struggle with the snake or did
it wither and die after it bit you? Gillian Holloway, Ph.D. identifies being bitten by a snake as
meaning different things. She says, "In many dreams a single snake will come to bite you, and you
may in fact be bitten after a brief struggle. To your amazement though, you will not die, and may
find that the situation is not as bad as you thought." According to Holloway you have this kind of
dream if you are struggling with some problem, relationship or challenge. "Such a snake-ordeal is
an important signal that you are going through a kind of initiation; a psychological and spiritual trial
that has the potential to change your life for the better if you deal with it bravely and with a clear
heart. You may have to give up something you thought you couldn't, or take a stand for your
principles or faith."
If the snake withered and died after it bit you then it could be a dream of a sexual nature
replicating the male orgasm. Snakes can also indicate trouble in your life. It could mean that
something is worrying you and needs to be resolved by you.