When we raise one hand to say "bye-bye" we are gesturing that we are going apart from each other, whereas when we join our palms and bow our head, our hearts become closer.
Mata AmritanandamayiAt the end of the archana, prostrate, then get up and, remaining on the same spot, turn around clockwise 3 times just as if circling a temple, then bow to the Lord.
Mata AmritanandamayiAs long as her hands can move a little bit and reach out to those who come to Her, Amma will continue giving darshan.
Mata Amritanandamayi