Lord Krishna... proclaims Self-realization, true wisdom, as the highest branch of all human knowledge-the king of all sciences, the very essence of dharma ("religion")-for it alone permanently uproots the cause of man's threefold suffering and reveals to him his true nature of Bliss. Self-realization is yoga or "oneness" with truth-the direct perception or experience of truth by the all-knowing intuitive faculty of the soul.
Since you alone are responsible for your thoughts, only you can change them. You will want to change them when you realize that each thought creates according to its own nature. Remember that the law works at all times and that you are always demonstrating according to the kind of thoughts you habitually entertain. Therefore, start now to think only those thoughts that will bring you health and happiness.
Work for God, love God alone, and be wise with God. When an ordinary man puts the necessary time and enthusiasm into meditation and prayer, he becomes a divine man.
Since you alone are responsible for your thoughts, only you can change them.
The happiness of one's own heart alone cannot satisfy the soul; one must try to include, as necessary to one's own happiness, the happiness of others.
You are walking on the earth as in a dream. Our world is a dream within a dream; you must realize that to find God is the only goal, the only purpose, for which you are here. For Him alone you exist. Him you must find.