Japuji Sahib
Japuji Sahib, is the first book of the holy Sri Guru Granth Sahib. It contains 41 verses only. It is compiled by Sri Guru Angad Dev Ji. In obedience with his master's orders, Guru Angad selected appropriate verses and gave Japuji Sahib its present form during the last decade of Guru Nanak's life.
Its theme provides knowledge to an average man as to how he should attain spiritual perfection. It favours man’s participation in the affairs of the world, combined with an integration of wisdom and selfless activity. Japuji Sahib describes the basic concept of Sikhism i.e. devotional worship (Bhakti or Simran). The best time for meditation of Japuji Sahib is the dawn time (means the ambrosial hour)
The Mulmantra called (The Prologue) and it's description is as follows -
Ik Onkar
There is only one God
Sat Naam
His name is Truth
Karta Purakh
He is the creator
Nirbhau
Sans fear
Nirvair
Sans enmity
Akal Murat
Eternal
Ajuni
Unborn
Saibham
Self effulgent
Gurprasad
Realized by His divine grace.
Aad Sach
True before creation
Jugad Sach
True through all ages
Hai Bhi Sach
True also today
Nanak Hosi Bhi Sach
Nanak says, True He shall eternally be.