Nasti buddhir ayuktasya na cayuktasya bhavana
na cabhavayatah santir asantasya kutah sukham
(Text 66, Contents of the Gita Summarized)
Meaning: One who is not connected with Supreme (in Supreme consciousness) can have neither transcendental intelligence nor a steady mind, without which there is no possibility of peace. And how can there be any happiness without peace?
* When one understands that Supreme (God) is the only enjoyer of all the good results of sacrifice and penance, that he is the proprietor of all universal manifestations, and that he is the real friend of all living entities, then only can one have real peace.