The state of severance of union with sorrow is known by the name of yoga.
O Krishna, the stillness of divine union which you describe is beyond my comprehension. How can the mind, which is so restless, attain lasting peace? Krishna, the mind is restless, turbulent, powerful, violent; trying to control it is like trying to tame the wind.
A person is said to have achieved yoga, the union with the Self, when the perfectly disciplined mind gets freedom from all desires, and becomes absorbed in the Self alone.
A person whose mind is unattached to sensual pleasures, who discovers the joy of the Self, and whose mind is in union with Brahman through meditation, enjoys eternal bliss.