Oh my god! This is exactly what I experienced too! Before I went to take my teacher training course yoga was just a form for exercise. A very nice and gentle one since I had been injured. But when I learned about yoga philosophy and that yoga is actually a form of meditation the game had changed and I saw the bigger value of it.
To improve the world we need to work on ourselves first and foremost. Then comes the realisation that we're all one. Thank you for your comment and kind words. Blessings and love to you!