The earth we abuse and the living things we kill will, in the end, take their revenge; for in exploiting their presence we are diminishing our future.
Not knowing the consequence of good and evil karmas, he is afflicted and hurt. Nevertheless, he, due to his egotism, piles up more karmas and undergoes births and deaths again and again.
As soon as we lose the moral basis, we cease to be religious. There is no such thing as religion overriding morality. Man, for instance, cannot be untruthful, cruel or incontinent and claim to have God on his side.
As the heat of a fire reduces wood to ashes, the fire of knowledge burns to ashes all karma. Nothing in this world purifies like spiritual wisdom. It is the perfection achieved in time through the path of yoga, the path which leads to the Self within.

