"Andai Ku Tahu" is a collaboration between the Indonesian band Ungu and the legendary singer Rhoma Irama. The song combines elements of pop and dangdut, a popular genre in Indonesia. The song begins with the Arabic phrase "لا إله إلا الله" (There is no god but Allah), which is a declaration of faith in Islam. This phrase is repeated throughout the song as a reminder of the importance of monotheism in the Islamic faith. The lyrics convey a sense of reflection and contemplation about life and death. The singer expresses a desire to know when their time will come and asks God for a longer life. They also express fear and remorse for their sins, seeking forgiveness from Allah. The chorus emphasizes the oneness of God and warns against idolizing humans or objects. It urges listeners not to associate partners with Allah and reminds them that no one and nothing can compare to Him. The lyrics also touch upon the concept of heaven and hell. The singer acknowledges their fear of hell and recognizes that they are unworthy of heaven. They express a desire to repent and seek forgiveness from Allah for their sins. Overall, the song carries a strong religious message, highlighting the importance of faith, repentance, and devotion to Allah in the Islamic tradition. It serves as a reminder for listeners to stay on the right path and seek Allah's forgiveness in their journey towards salvation.