Guru Nanak Dev Ji is known for his political, social and spiritual beliefs, which were based on love, equality, fraternity and virtue. He traveled to far off places and spread the message of 'one God' and that God constitutes the eternal truth and he resides in his creations. His teachings can be found in the sacred Sikh scripture Guru Granth Sahib Ji -- a vast collection of verses recorded in Gurmukhi.