Why do we pray with both hands together? I believe that both hands coming together symbolizes the power generated by people coming together to help each other. It reflects the strength of the prayer when more people come together for a greater cause, than a self serving cause.
More people with clasps hands can generate a stronger prayer. If this assumption is correct, we must encourage others to pray. What do we pray for? We pray that God helps people eliminate evil (greed, arrogance, and self love) from our hearts. When this occurs, all mankind will live a joyous life with everyone helping each other. Let us put our hands together to pray.