Yellow Brooch in dreams
A pinned ornament on outer clothing — a small, visible statement about who you are.
How yellow changes the reading
Yellow colour is the dream's attention itself — the symbol in yellow is the symbol the dream specifically wants you to notice. Sometimes it is warmth, sometimes warning, often both at once.
The base reading of Brooch
A brooch in a dream is the dream's image of a small, deliberate, visible statement about identity. Unlike a ring or a necklace, a brooch is pinned on the outside of what you are wearing; it announces. The dream brings the brooch when something in your life — an affiliation, a memorial, an opinion — is being worn where other people can see it. A brooch fastened with care is the dream telling you the statement is intentional and owned. A brooch lost from the coat is the dream noting that a small visible part of how you have been signalling yourself has fallen away unnoticed.