Waheguru Ji Ka Khalsa Waheguru Ji Ki Fateh ji. From what I know, I understand that the Bhagat Jis in Sri Guru Granth Sahib Ji were from different backgrounds and faiths and they were highly spiritual. But I just wondered, when they met on an encounter with Guru Ji, if they then when on to follow Guru Ji? Or was it the fact that they already had spiritual knowledge and therefore believed in the same principles of the One Lord and that is why their Bani is included in Sri Guru Granth Sahib Ji? If I've made any mistakes, feel free to correct me.