... become ye sanctified above and purified from this world
and the inhabitants thereof; suffer your intention to become for the good of
all; cut your attachment to the earth and like unto the essence of the spirit
become ye light and delicate. Then with a firm resolution, a pure heart, a
rejoiced spirit, and an eloquent tongue, engage your time in the promulgation
of the divine principles... (‘Abdu’l-Bahá,
‘Tablets of the Divine Plan’)