Complex sentence: Siuda founded the group that would become the Kemetic Orthodox Faith in 1988, after an experience during a Wiccan initiation ritual in which she believed she had been called by the ancient Egyptian deities to revive their worship.
Split into simpler sentences: Siuda founded the group that would become the Kemetic Orthodox Faith in 1988. She reports that she had prevously had an experience during a Wiccan initiation ritual in which she was called by the ancient Egyptian deities to revive their worship.