In the first question of The Spirits’ Book, Allan
Kardec asks the superior spirits, “What is God?” The answer
given is that “God
is the Supreme Intelligence, the First Cause of all things.” He
then proceeds to ask, “What are the proofs of God’s
existence?”, to which the superior spirits answer, “An axiom in science states that
there is no effect without a cause.
Look for the cause of things which are not the work of human
beings, and your reason will provide the answer.”
In the opening to his chapter on the “Profession of a Rationalized, Spiritist Faith”, in the book "Posthumous Works", Kardec repeats the Spirits’ definition of God, as stated above, and the axiom to which they made reference, adding the following comments.
