In the Bible, the lamb is a symbol for Christ. The lamb of God represents a pure heart, without aggression or anger.
The lamb is a tender, docile animal, linked to spirituality in many cultures, with great purifiying and forgiving powers. Traditionally a sacrificial animal, the lamb is a figure of redemption and innocence, often linked to childhood.
The white lamb
The white lamb is a symbol of purification, maybe a new understanding of a certain situation has put things in a new light. This new outlook may give the dreamer some relief from their worries, stresses and tensions. The lamb's white coat is a symbol of hope in the dreamer's life.
The sacrificial lamb
A lamb which has been sacrificed represents a clarification, or loss of illusion, often the sacrifice of a desire or wish linked to childhood. Maybe you have realised that one of your dreams is unattainable or unrealistic.
This new outlook could be either positive, or negative, depending on the dreamer's reaction. Provided that it is accepted however, it will be a change for the good.
The lamb being eaten by a wolf
This is a completely different image to that of the sacrificial lamb. The death of the lamb here, is most definately a bad thing, representing threatened innocence. Be careful, protect yourself from any dangers, especially from those around you.
A flock of lambs or sheep
Sheep in flocks represent the dreamer's social instinct, which leads them to seek out and make contact with other, similar people. Sometimes we don't make enough time for contact with others, maybe you need to take some time out and to be with your friends: do something fun together, go to a show, or go out somewhere.
It can also be a symbol of danger however, a sign that you may be blindly following what others do or say, without thinking for yourself. Don't be the proverbial sheep!