You can feel the presence of God, in the depth of silence. In the excitement, clutter and confusion of the marketplace, you cannot hear His gentle footsteps. He resounds with clarity, when all is filled with silence. Hence I insist on silence, practice of soft speech and minimum sound. Talk little, talk in whispers, sweet and true. When you want to place a heavy thing on the ground, place it with care, do not drop it and create noise around you. Bend a little, keep it softly and gently on the floor with care. Similarly examine each and every act of yours and see to it that you execute it softly and silently. Transact all dealings with minimum speech and eliminate noise. Do not shout to persons standing far, go near them or beckon them to approach you. Loud noise is a sacrilege on the sky, just as there are sacrilegious uses of earth and water.
source::::: Divine discourse of Swami Satya SAI..
Natarajan