As a yoga instructor, I can’t recommend locust pose enough–since there are so many benefits. It’s tremendous for stretching out the front side of the body, while also strengthening a number of different muscles. Primarily, this posture works the glute and leg muscles, as well as the entire back and shoulders.
This gentle backbend helps to open up the chest (aka the heart center, or heart chakra) and strengthens the spine, as you stimulate all of your abdominal organs.
The bottom line is, whether you want to strengthen the back of your body, open up the front, or simply relieve some neck stiffness, this is a posture you don’t want to skip.