The word vaheguroo comes in gurbani repeatedly, aswel as in Bhai Gurdas jees vaars.
when i read that Gurbani, i understand it as the gupt naam, was the naam that was gupt from the world. and Guru Sahib revealed it to the world, after obtaining it from Sach Khand.
when mr kumi said Gurmantar was kept gupt, does this mean that no one in those times knew about the word Vaheguroo, only the ones Guru Sahib gave it to? in that case, i dont understand why Mahraaj would write it in Gurbani in which everyone has access to
fateh
(i love p walla)