A man enjoys freedom from the cycle of rebirth when the four names bearing "Ga" i.e. Gita, Gayatri, Govinda and Ganga are duly retained by him in his heart and mind.
गीता गङ्गा च गायत्री गोविन्देति हृदि स्थिते। चतुर्गकारसंयुक्ते पुनर्जन्म न विद्यते॥