http://www.exoticindiaart.com/article/namaste
This wonderful article explores the greeting from many angles.
A quote I enjoyed:
"At its most general namaste is a social transaction. It is usual for individuals to greet when they meet each other. It is not only a sign of recognition but also an expression of happiness at each other's sight. This initial conviviality sets the positive tone for the further development of a harmonious relationship. Namaste as a greeting thus is a mosaic of movements and words constituting an intimation of affirmative thoughts and sentiments. In human society it is an approach mechanism, brimming with social, emotional and spiritual significance. In fact it is said that in namaste the hands are put together like a knife so that people may cut through all differences that may exist, and immediately get to the shared ground that is common to all peoples of all cultures."
Namaste all.
Jeff