Yoga For Beginners 30 Day Challenge, welcome to day 5. Today we're adding plank pose which is a challenging and wonderful yoga pose that builds strength throughout the body. We'll also practice cobra pose. We're adding more and more poses to build into a complete sun salutation which is used a lot in our practice to warm up the body. For our standing poses, we'll add trikonasana, or triangle pose. This pose is a wonderful lateral stretch which lengthens the side body. Moving the spin forward and backward (flexion/extension) is a wonderful way to keep it healthy. Lateral stretches or side bends are important for the spine too.