Now, I have read from many sources and it all seems to go in different directions.
I cannot believe the tale of him living in hiding for a hundred years and then appointing another baba as 11th guru as believed by some sects. -This cannot be true as he would not have hidden away from the struggles of the khalsa panth in those years.
He made it clear that just like most humans worrying about what they shall leave behind that he was concerned about the welfare of the khalsa panth in the sense that he didn't want the khalsa soldiers to be worried and say ''what do we do now??''
Thus he said the poem below, that we say everyday in front of the Guru Granth Sahib Ji,-
<DL itxtNodeId="92" itxtHarvested="0"><DD>Agya bhai Akal ki tabhi chalayo Panth Sabh Sikhan ko hukam hai Guru manyo Granth Guru Granth Ji manyo pargat Guran ki deh Jo Prabhu ko milbo chahe khoj shabad mein le Raj karega Khalsa aqi rahei na koe Khwar hoe sabh milange bache sharan Jo hoe."</DD><DD> </DD><DD>Translation of the above: </DD><DD itxtNodeId="101" itxtHarvested="0">"Under orders of the Immortal Being, the Panth was created. All the Sikhs are enjoined to accept the Granth as their Guru. Consider the Guru Granth as embodiment of the Gurus. Those who want to meet God, can find Him in its hymns. The Khalsa shall rule, and its opponents will be no more, Those separated will unite and all the devotees shall be saved</DD></DL>
The other tale is that his body and horse or something along those lines both vanished.!!!
This also cannot be true as he clearly stated that his physical body should not be worshipped and is just a material that is left behind.
We have this myth of Guru Nanak's and Guru Gobind's body just dissapearing after death and this is probably one of the world's oldest myths from Jesus to greek mythology- It borders on the belief that God himself has come into the world fully disguised as a human and then dissapears when he needs to!!!
- On this, Guru Gobind Singh Ji clearly stated something on the lines of -''Anyone that calls me or other Gurus a God or the Lord shall rot in hell !!''
Now, if he clearly never wanted us to remember him as a 'form' of the One God, then he would NOT carry out such a dissapearing act and neither would have Guru Nanak according to his philosophy.
-- ALL these stories make the religion sound like ''FUN'' as compared to abrahamic religions and other faiths, but SIKHISM is NOT about miracles and such acts of Wow
--So, please folks, please don't get dragged into the trappings of these myths. It must hurt and offend the true spiritual spirits of our Gurus and the true sikh spirit.
Waheguru