Warrior 1 Pose begins by stepping into a deep lunge, by placing the right foot at the top of your mat and extending the left foot back to the bottom end of the mat. Pivot on the ball of the left foot, letting the heel of your foot come down onto the mat. The right leg is bent at the knee, directly above the ankle, creating a 90 degree angle from the calf to the floor. Make sure that your right thigh is parallel to the floor. Square your hips and shoulders with the top of you mat, raising your arms straight up above you head. As you square your hips with the front of the mat, draw your right hip back while bringing your left hip forward. Bring your palms together, reaching your fingertips towards the ceiling, while dropping your shoulder blades downward. Hold this posture for 5 to 10 deep breaths. Repeat with your left leg forward.