They for whom I am the supreme goal, who do all work renouncing self for me and meditate on me with single-hearted devotion, these I will swiftly rescue from the fragment’s of cycle of birth and death, for their consciousness has entered into me.
When the senses contact sense objects, a person experiences cold or heat, pleasure or pain. These experiences are fleeting; they come and go. Bear them patiently, Arjuna. Those who are not affected by these changes, who are the same in pleasure and pain, are truly wise and fit for immortality.
In the still mind, in the depths of meditation, the Self reveals itself. Beholding the Self by means of the Self, an aspirant knows the joy and peace of complete fulfillment.
Perform work in this world, Arjuna, as a man established within himself – without selfish attachments, and alike in success and defeat. For yoga is perfect evenness of mind.
– Bhagavad Gita