As Siri Guru NanaK Dev Ji states in the Mool Mantar , God is the Ultimate Truth and one has to cultivate those qualities which are associated with him, in order to like Him. The basic concept behind the hymns is that sacred music, when sung or listened to with devotion and undivided attention, can link the individual's consciousness with God. A mind may become stable and enjoy the peace of His divine Presence, as listening to the hymns can exert a powerful influence on the mind and help to establish its communion with God. In Siri Guru Granth Sahib Ji, revelation and Raga go hand in hand. The Gurus were emphatic about the religious value of sacred music or Kirtan and stressed its continuous use, as source of divine joy and bliss.
Sacred music is fine art wedded closely to the spiritual theme.
It is devotional music in praise of the Glory of God conveyed by melody and rhythm. The goal or objective of Kirtan is to put the individual soul in tune with God. Siri Guru Granth Sahib Ji is a book of Revelation. It conveys the Word of the Master through His messengers on earth. It is universal in its scope.