‘Abdu’l-Bahá was asked if prayer was necessary since
presumably God knows the wishes of all our hearts
‘Abdu'l-Bahá said:
"If one friend feels love for another he will wish to
say so. Though he knows that the friend is aware that he loves him, he will
still wish to say so. If there is anyone that you love do you not seek an
opportunity to speak with him, to speak lovingly with him, to bring him gifts,
to write him letters? If you do not feel such a desire it would be that you did
not love your friend. God knows the wishes of all hearts. But the impulse to
pray is a natural one springing from man's love to God. (Words of ‘Abdu'l-Bahá,
from an article in The Fortnightly Review, June, 1911, by Miss E. S. Stevens;
Star of the West, vol. 8, May 17, 1917)