“While contemplating the objects of the senses, a person develops attachment for them, and from such attachment [LUST] develops, and from lust anger arises.”
“From anger, complete delusion arises, and from delusion bewilderment of memory. When memory is bewildered, intelligence is lost and one falls down again into the material pool.”
“One is understood to be in full knowledge whose every endeavor is devoid of desire for sense gratification. He is said by the sages to be a worker for whom the reactions of work have been burned up by the fire of perfect knowledge.”
“In this world, there is nothing so sublime and pure as transcendental knowledge. Such knowledge is the mature fruit of all mysticism. And one who has become accomplished in the practice of devotional service enjoys this knowledge within himself in due course of time.
A faithful man who is dedicated to transcendental knowledge and who subdues his senses is eligible to achieve such knowledge, and having achieved it he quickly attains the supreme spiritual peace.”
“One who acts in devotional service, renouncing the fruits of his actions, and whose doubts have been destroyed by the transcendental knowledge, is situated factually in the self. Thus he is not bound by the reactions of work, O conqueror of riches.
Therefor the doubts which have arisen in your heart out of ignorance should be slashed by the weapon of knowledge. Armed with yoga, O Bharata, stand and fight. “
-Bhagavad Gita Chapter 2 vs 62, 63 and Chapter 4 vs 19,38, 39, 41 & 42.