Yoga is more than just getting into difficult physical holds and contortionist positions. It is also more that a competition of who is most flexible. Yoga really is about learning to COME BACK TO YOURSELF. It is about finding your limits, expanding your boundaries and truly being able to relax into who you are.
Yoga is about taking time to remember who you are while being caught up in this fast-paced thing we call life. It has become an increasingly more popular form of exercise because it helps you feel relaxed, harmonious, integrated and complete. Finding your center in yoga poses, helps you find your center in other areas of your life. Dealing with the difficulties of a posture can help you effectively learn to manuever in the difficult situations of your life.
So in short besides stretching you out and getting you stronger, yoga, helps stretch your mind and gets your spirit stronger to deal with the difficulties faced by everyone in everyday life.
Take your time and practice a little daily. Do your research. And don't be afraid to fail. All positions get better with practice. You can do this. You can do whatever you choose. Always good, working on better, striving for best.