As is in Shri Sai Satcharita, by Hemadpant .. Chapter XX I Page 112

Om Sai Shri Sai Jaya Jaya Sai

The mare is God's grace and the nine balls excreted are the nine forms or types of Bhakti, viz., (1) Shravana (Hearing); (2)Kirtana (praying); (3) Smarana (Remembering); (4) Padasevana (resorting to the feet); (5) Archana (Worship); (6) Namaskara (Bowing); (7) Dasya (Service); (8) Sakhyatva (Friendship); (9) Atmanivedana (surrender of the self).  These are the nine types of Bhakti.  It any of these is faithfully followed, Lord Hari will be pleased, and manifest Himself in the home of the devotee.

Bow to Shri Sai - Peace be to all