The name is so valuable for the devotee, it persuades the form to blend and bless. Keep the name lit on the tongue; it will illumine your interior and also the exterior. It will cleanse your mind, as well as the minds of those who hear the name, when you recite it. Keeping it on the tongue is like keeping a lamp lit on the doorstep at the entrance to your house.
(From : Sai Veda, The Word of God, sayings of Bhagavan Sri Sathya Sai Baba)