Existence is of two kinds: one is the existence of God which
is beyond the comprehension of man. He, the invisible, the lofty and the
incomprehensible, is preceded by no cause but rather is the Originator of the
cause of causes. He, the Ancient, hath had no beginning and is the
all-independent. The second kind of existence is the human existence. It is a
common existence, comprehensible to the human mind, is not ancient, is dependent
and hath a cause to it. The mortal substance does not become eternal and vice
versa; the human kind does not become a Creator and vice versa. The
transformation of the innate substance is impossible.
(‘Abdu’l-Baha,
‘Selections from the Writings of ‘Abdu’l-Baha’)