HashiCorp's Learn tutorial aims to teach enterprise patterns for Terraform modules, helping organizations apply these best practices to their workflows. By organizing infrastructure into modules, teams can reuse configurations, saving time and reducing errors. The tutorial covers coding best practices, such as clear organization and the DRY principle, and provides architectural recommendations for module creation, including principles for writing composable, shareable, and reusable modules. Upon completion, learners will be familiar with recommended enterprise patterns for modules and be able to apply them in their own organizations' workflows.