Maybe you have been thinking about trying yoga for months—or years. You might want to feel stronger, move with less stiffness, manage stress or simply find one hour in your week that does not belong to everyone else. But then the doubts begin: I’m not flexible enough. I don’t know the poses. What if everyone else is better than me? Here is the most important thing to know before beginning yoga: You do not have to prepare yourself for yoga. Yoga is one of the ways you begin taking care of the body and life you already have. Let’s dive in to this beginner’s guide to yoga: What Is Yoga?…