What is preamble definition?

A preamble is an introductory statement or explanation that precedes a document, such as a constitution, a statute, or a treaty. Its purpose is typically to provide a context for the document, explain its rationale, and set forth its objectives. The preamble is not considered to be part of the legal text itself, but it can help to shape the interpretation of the document and establish its underlying principles. In many cases, the preamble may reflect the historical or political context in which the document was created, and may express values or aspirations that are intended to guide its implementation.