I was reading the following interest quotes of Lord Krishna in the Bhagavad Gita:
"Never was there a time when I did not exist, nor you, nor all these kings, nor in the future shall any of us cease to be"
"As the embodied soul continously passes, in this body, from boy-hood to youth to old age, the soul similarly passes into another body at death, a sober person is not bewildered by such a change"
"The Non-permenant appearance and dissapearance of happiness and distress in due course are like the appearance and dissapearance of winter and summer seasons. They arise from sense perception and one must learn to tolerate them without being disturbed"
"A person who is not disturbed by happiness and distress and is steady in both is certainly eligible for liberation"
"For the soul there is neither birth at any time. He has not come into being, doesnot come into being and will not come into being. The soul is unborn, eternal, ever-existing and primeval. He is not slain when the body is slain"
"As a person puts on new garments, giving up old ones, the soul similarly accepts new material bodies, giving up the old and useless ones"
"One who has taken birth is sure to die and after birth one is sure to take birth again, therefores there nothing to lament"
"You have a right to perform your prescribed duty, but you are not entitled to the fruits of action, never consider yourself the cause of the result of your activities and never be attached to not doing your duty"
"Perform your duty equipoised, abandoning all attachments to success or failure. Such equanimity is called YOGA"
The above is just a glimpse of the wonderful book "Bhagavad Gita", going through and practically trying to implement the same makes life so easy going and carefree