As is in Shri Sai Satcharita, by Hemadpant .. Chapter XVIII & XIX Page 100

 Om Sai Shri Sai Jaya Jaya Sai

The (mother) tortoise is on one bank of the river and her young ones are on the other side.  She gives neither milk nor warmth to them.  Her mere glance gives them nutrition.  The young ones do nothing, but remember (meditate upon) their mother.  The young ones do nothing, but remember (meditate upon) their mother.  The tortoise glance is, to the young ones, a down-pour of nectar, the only source of sustenance and happiness.  Similar is the relation between the Guru and disciples.

Bow to Shri Sai - Peace be to all