Buddhi (intellect) is the most superior faculty of man, and its preeminence, is due to its proximity to the Atma. Below intellect is the mind; below the sensory organs is the body. In actual fact, intellect should always exercise control over the mind, and the mind over the senses. But today, mostly the reverse is occurring and hence all the chaos.
Birth as a human being is a unique chance, for man is endowed with a discriminating intelligence. Intelligence must be the Lord and Master.
It is not enough if one has human form or the basic human equipment, physical, mental and emotional. With the help of discriminating intellect, one must bring it to perfection, as a sculptor does after the stone is brought to a definite shape.
(Gems of Wisdom, Intellect (Buddhi), pg 48)
