Not all practitioners can jump to that highest level. They have to climb, step by step from the physical sphere to reach the spiritual sphere. If it is treated as exercise it is not the fault of yoga but of the practitioners.
B.K.S. IyengarYoga is firstly for individual growth, but through individual growth, society and community develop.
B.K.S. IyengarYoga allows you to rediscover a sense of wholeness in your life, where you do not feel like you are constantly trying to fit broken pieces together.
B.K.S. Iyengar