You wouldn't take an advanced-level math class before learning simple addition and subtraction. The same concept applies to yoga.
Even the most advanced yogis still appreciate the basics, one of which is Child's Pose. The move is relaxing and designed to prep your body for the stretches that come with a more challenging routine.
In the Udaya video above, instructor Rudy Mettia takes you through a simple sequence that teaches you how to nail Child's Pose, which will increase flexibility in your hips and spine. The lesson also touches on Savasana, a calm-inducing portion of a yoga class that's sure to let you unwind.
If you're at a novice level, give these postures a try. No one becomes a yoga pro in a day -- but as they say, practice makes perfect.