Why is Before middleware logic important in Laravel applications, and what problem does it solve for developers?

Why is Before middleware logic important in Laravel applications, and what problem does it solve for developers? The key reason to understand before middleware logic is that Laravel applications are usually composed of several layers that must work together predictably. Middleware can inspect an incoming request and decide whether it should continue to the next application layer. Ignoring that boundary can lead to duplicated logic, poor security, unnecessary database work, or code that is difficult to test. Why it matters in practice: Middleware inspects or modifies HTTP requests and responses and is commonly used for authentication, authorization, rate limiting, logging and request-level policy. The specific focus here is before middleware logic: Middleware can inspect an incoming request and decide whether it should continue to the next application layer. This question is designed to test not only terminology, but also how the concept fits into Laravel's request, application, database, security, or deployment workflow.