What is the cause of the inequality that exists among mankind?
Why should one person be brought up in the lap of luxury, endowed with fine mental, moral and physical qualities, and another in absolute poverty, steeped in misery?
Why should one person be a mental prodigy, and another an idiot?
Why should one person be born with saintly characteristics and another with criminal tendencies?
Why should some be linguistic, artistic, mathematically inclined, or musical from the very cradle?
Why should others be congenitally blind, deaf, or deformed?|
Why should some be blessed, and others cursed from their births?
Either this inequality of mankind has a cause, or it is purely accidental. No sensible person would think of attributing this unevenness, this inequality, and this diversity to blind chance or pure accident.
In this world nothing happens to a person that he does not for some reason or other deserve. Usually, men of ordinary intellect cannot comprehend the actual reason or reasons. The definite invisible cause or causes of the visible effect is not necessarily confined to the present life, they may be traced to a proximate or remote past birth.
"All living beings have actions (Karma) as their own, their inheritance, their congenital cause, their kinsman, their refuge. It is Karma that differentiates beings into low and high states." Buddah
"If anyone says that a man or woman must reap in this life according to his present deeds, in that case there is no religious life, nor is an opportunity afforded for the entire extinction of sorrow. But if anyone says that what a man or woman reaps in this and future lives accords with his or her deeds present and past, in that case there is a religious life, and an opportunity is afforded for the entire extinction of a sorrow."
As we sow, we reap somewhere and sometime, in this life or in a future birth. What we reap today is what we have sown either in the present or in the past.
http://www.buddhanet.net/e-learning/karma.htm