The difficulties of this world appear to be the consequence of all different levels of evolutionary development being thrown together simultaneously, which results in social turbulence. Simultaneously, however, the availability of such a wide spectrum allows for the greatest opportunity for growth and the undoing of ‘bad karma’ and, by choice, accumulating the merit of ‘good karma’ . Thus, this domain is one of maximum spiritual opportunity with a great multitude of options and choices that provide maximum potential for the evolution of consciousness about which one can be grateful instead of resentful. As the Buddha taught, “Rare is it to be born a human being, rarer still to have heard of Enlightenment, and even rarer still to pursue it.”
From Transcending the Levels of Consciousness ch. 14, pg. 255