Green Lamb in dreams
A newborn sheep — vulnerable goodness in need of a keeper.
How green changes the reading
Green colour adds growth and viability. The base meaning is still the meaning — green says it is alive, it is going somewhere, the conditions for it have begun to form.
The base reading of Lamb
A lamb in a dream is the dream's image of new, defenceless good. The animal does not yet know it is vulnerable and is kept alive by something larger than itself paying attention. The dream brings the lamb when a new tender thing in your life — a kindness, a project, a child, a returned faith — needs you to stand over it for a while longer. A lamb that has found its mother is the dream marking that the protection is in place. A lamb that has been left out and is being circled is the dream warning that you stopped guarding something that is not yet strong enough to guard itself.