Life and yoga are not two but one thing. Life, at least as we experience it, is a concealed yoga. Yoga as the yogin experiences it is life taken to its utmost.
The yoga opens the doors of knowledge, true knowledge for us so that we become aware of the truth of our own self and the truth of the world around us. This truth and knowledge are liberating.
... what about survival of the fittest, what about competition and strife that abound in our everyday life? What alternative fuel to drive human nature does yoga provides?
There is a tendency to think that people who take to spiritual life become incapacitated for dealing with real life issues. Nothing can be farther from truth. This misconception is based on a wrong understanding of true spirituality and a wrong understanding of life as well.
... each species must follow its own law of evolution. While evolution in animals is largely an unconscious process driven by instincts, the law of man is to choose and grow conscious.
Questions include (1) who created the Creator, (2) achieving unity from within outwards, (3) physics, science and spirituality, (4) imagination and reality, (5) our role in the various challenges and threats to the earth.
There is a wisdom that underlies the seemingly random events of life. The Intelligence that has gone into creation is much vaster than our surface mind and reason can fathom. How is an ant to understand the scale at which the tornado moves?
A conscious evolution is our best hope for the future. But what will be the direction of this evolution? Here too we can find useful hints that Nature has thrown at us.