Prayer from the heart is the most powerful thing in the world.

Today, the first Friday in March, is the World Day of Prayer (WDP), an ecumenical movement to strengthen the bonds between all people, of all religions, throughout the world.

"Prayer does not change God, but it changes him who prays,"  observed Danish writer Søren Kierkegaard, who believed in the passionate sense of potential.

Beginning at dawn in Tonga and finishing 40 hours later in Alaska, in over 1,000 languages, today the world prays. A day of unity and grace, peace and potential, power and hope.

"My secret is quite simple," confessed Mother Teresa of Calcutta. "I pray."

Prayer is a catalyst and elixir.