Yoga is difficult for the one whose mind is not subdued. – Bhagavad Gita
The senses have been conditioned by attraction to the pleasant and aversion to the unpleasant: a man should not be ruled by them; they are obstacles in his path. – Bhagavad Gita
Those who eat too much or eat too little, who sleep too much or sleep too little, will not succeed in meditation. But those who are temperate in eating and sleeping, work and recreation, will come to the end of sorrow through meditation. – Bhagavad Gita
On this path effort never goes to waste, and there is no failure. Even a little effort toward spiritual awareness will protect you from the greatest fear. – Bhagavad Gita