As you lift your knees off the ground, spread your collarbones wide and draw your elbows gently towards each other as if you are holding a light ball between them. This action will help you to Gain more lift and strength. Your chest moves towards the front of your hips, as the crown of your head releases downward. Softly gaze towards your feet.The key here is to first be well grounded in your hands. Imprint your hands into your mat or the ground, with your fingers spread evenly and your index fingers pointing straight forward. Externally rotate your upper arms at the shoulders as you slightly roll your wrists towards your thumbs. This will help you to keep your elbows straight without over locking the joints.
Again, think long. We are looking for that lovely traction and length in our backs.

You may initially begin with knees slightly bent so that you can feel the freedom that a straight spine brings.

Gradually coax the lengthen your hamstrings by pulling the fronts of your thighs back into your femur bones.. As you pull your thighs back, continue to widen the backs of your legs and slowly reach from your hips to your heels.

BREATHE SURRENDER STRENGTH EASE. Namaste.