‘Abdul-Baha wisheth no one’s heart to feel hurt, nor will he
be a source of grief to any one; for there is no greater satisfaction than
being a source of joy to the hearts.
I ask God that ye may become like angels of heaven, sources
of happiness to souls. (‘Abdu’l-Baha, ‘Tablets of ‘Abdu’l-Baha’, vol. 1)