Tirukkural 374: Acquisition of Wealth and Knowledge

There are (through fate) two different natures in the world, hence the difference (observable in men) in (their acquisition of) wealth, and in their attainment of knowledge.

Image of Satguru Sivaya Subramuniyaswami
Sadhana is performing the same discipline over and over and over again. Just as we methodically exercise the physical body to build up its muscles, we perform spiritual disciplines over and over again to strengthen our spiritual, inner bodies.
—Gurudeva