What type of postures usually serve to prepare the body for more difficult poses?

The correct answer is warm-up poses. These poses are specifically designed to gradually prepare the body for more complex movements and postures that require greater flexibility, strength, and balance. Warm-up poses often involve gentle movements that increase blood flow, enhance mobility in the joints, and promote awareness of bodily alignment, making it easier to transition into more challenging poses safely and effectively.

Utilizing warm-up poses is crucial in a yoga practice as they help reduce the risk of injury by ensuring that the muscles are adequately prepared to perform at higher intensity. This foundational work sets the stage for a more successful engagement with the more demanding poses that follow.