Hastamalaka

At Mookambika

https://0sh8.blogspot.com/search/label/Janani

, a brahmana named Prabhakara approached Shankara with his seven year old son who appeared to be under-developed and behaved like an idiot, prefering to spend time alone without talking with anyone. When Shankara asked the boy who he was, the boy replied that he was one with the undivided Bliss free from the six states of grief, namely 

1. infatuation, 
2. hunger, 
3. thirst, 
4. old age 
5. disease and 
6. death; 

and also from the six conditions of 

1. beginning, 
2. continuance, 
3. growth, 
4. change, 
5. decay and 
6. destruction. 

In twelve verses the boy explained the doctrine of the Atman. Shankara found that the knowledge of the Atman was natural to the boy. 

The father of the boy was speechless with wonder at those words. But the Acharya said to him: `He has become your son because of his incomplete austerities. This is your good fortune. He will not be of any use to you in this world. Let him stay with me.' He bade him go back and, taking the boy with him, proceeded on his way. 

The disciples then asked him: `How did this boy attain the state of Brahman  

The Guru replied: `His mother left her two year old child in the care of a great and highly accomplished yogi who was practising austerities on the bank of the Yamuna while she went to bathe in the river with some women. The child toddled towards the water and was drowned. Out of his compassion for the disconsolate mother the sadhu forsook his body and entered that of the child. That is why this boy has attained this high state.' 

The boy became the famous disciple of Shankara, Hastamlaka, whose knowledge of Self was as natural as an Amalaka fruit in one's hand.

Wiki

http://en.wikipedia.org/wiki/Hastamalakacharya 

Document
http://sanskritdocuments.org/sites/snsastri/hastasans.pdf 

Tube 

https://www.youtube.com/results?search_query=Hastamalaka