Universal message for all people

It had been a custom at the time for religious leaders to address only their own congregation and for segregation of the different religions but Guru Nanak broke with tradition and spoke to all of humanity. To the Muslim he said And when, O Nanak, he is merciful to all beings, only then shall he be called a Muslim. to the Hindu, he said O Nanak, without the True Name, of what use is the frontal mark of the Hindus, or their sacred thread and to all he preached To take what rightfully belongs to another is like a Muslim eating pork, or a Hindu eating beef.