Identify the primary method to navigate backwards in the Prelude application.

In the context of navigating within the Prelude application, using "Page Up" is the primary method to move backwards. This action typically scrolls the view upwards, allowing users to access previous items or sections within the application. It effectively shifts the display back in a sequential manner, making it easier for users to review and adjust information they've previously interacted with.

The functionality of "Page Up" aligns with common navigation practices where pressing this key is associated with moving to earlier content or screens. This understanding is crucial for users who need to efficiently navigate through data or review past entries within the Prelude interface.