Nothing can match the strength of those whose lives have been shaped and forged through challenging and overcoming hardships. Such people fear nothing. The purpose of our Buddhist practice is to develop such strength and fortitude. To cultivate such an invincible core is in itself a victory. It is also the greatest benefit. Those who can succeed in this endeavor will savor unsurpassed happiness; they can manifest the supreme state of Buddhahood.
from sgi.org