The Guru supreme sacrifice:

Finally after peacefully bearing different forms of torture and refusing to show miracles at the request of Aurengzeb, Sri Guru Tegh Bahadur was beheaded in Chandni Chowk, Delhi, India. A note was written by Guru jee and placed around his neck which read ‘I gave my head, but not my faith’.

Now we must also take into consideration Gurbani strongly challenges rituals, idol worship or taking part in any fasts; which are a part of Hindu dharma. So how great was Guru Jee to sacrifice his life, so that others could live a life based on their own religious beliefs.