Behavior, pressure release, leaning on the bit, heavy horse, leaning on the hands. Tongue issues. The key point to this pressure motivates, release teaches concept is that YOU teach your horse what each type of different points of pressure that you use, means. When they feel this pressure, they need to respond appropriately and as SOON as they do, you release.
Linda Parelli introduces us to her partner, Westpoint, and explains how to obtain the appropriate response to pressure. She stresses the philosophy that pressure motivates, and release teaches. Her exercises demonstrate how this has greatly improved Westpoint, who came to Linda with a history of behavioral issues.