Depending on what kind of yoga class you are taking some start off seated and some start off standing. However the class begins physically, it's always important for you to begin your personal practice mindfully.
English Translation: Mountain Pose
If the instructor offers you a moment of meditation in the beginning of class, use this time to bring yourself into your body.
Try to let go of any thoughts about your day: what you forgot to do, who you need to call, or a disagreement you may have had, then connect with your body in the present moment. After all this is what yoga is all about.
Before you begin moving, create your intention. Bring your awareness inward to your breath and focus your energy on a person, an aspiration, a dream, a hope, a purpose, or something you wish to change in the world or in your life.
While seated, or standing at the front of your mat in Mountain Pose, create a space for your mind and body to be free, steady, and aware. For the entire practice and with each inhale and exhale, try to stay present and focus on that intention.
Through your yoga practice, you strengthen your spirit by connecting with yourself, which in turn, opens your heart and your mind. So when you step off your mat and into the world, you'll feel strong and confident to handle anything.
Try to get out of your mind that you wish your leg was straighter, or that you could hold a handstand for 10 breaths. It's not about what the poses look like, it's about moving and breathing, feeling good, and honoring you.