 In 1474 Ficino completed his treatise on the immortality of the soul, "Theologia Platonica de immortalitate animae" (Platonic Theology).In the rush of enthusiasm for every rediscovery from Antiquity, he exhibited a great interest in the arts of astrology, which landed him in trouble with the Catholic Church.In 1489 he was accused of heresy before Pope Innocent VIII and needed strong defense to preserve him from condemnation.