What is With method in Laravel, and what role does it play in a real application?

What is With method in Laravel, and what role does it play in a real application? In Laravel, with method should be understood as part of a larger application architecture rather than as an isolated API call. The with method tells Eloquent to retrieve selected relationships as part of the query plan rather than waiting for lazy access. A strong understanding includes its purpose, the layer where it belongs, the data or request flow it affects, and the situations where another mechanism may be more appropriate. Practical context: Eager loading retrieves related data intentionally to reduce repeated relationship queries and avoid common N+1 query patterns. The specific focus here is with method: The with method tells Eloquent to retrieve selected relationships as part of the query plan rather than waiting for lazy access. 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.