The song "Sin Ti No Puedo Vivir" by Jaci Velasquez is a love song that expresses the deep emotional connection and dependence on someone. The lyrics convey the message that without this person, the singer feels incomplete and cannot imagine life without them. The song starts by emphasizing how the person is like the light of the sun and their guiding star. They bring joy and happiness into the singer's life. The chorus repeatedly states that the person is the owner of the singer's heart and the infinite love they desire. The lyrics further describe the person as the star of the singer's night, lighting up their path and leading them. The singer is willing to give their life and heart just to have the privilege of loving this person. The lyrics also express the desire to be with them forever and consider them their best friend. In the end, the singer proclaims that they would go anywhere with this person and that being by their side brings them complete happiness. The lyrics suggest that their love for this person is profound and limitless. Overall, "Sin Ti No Puedo Vivir" is a heartfelt song about the powerful love and dependence the singer feels towards someone, who brings light, joy, and fortune into their life.