(As per reward-body of the Original Buddha), the consciousness that we receive from the Dharmakaya is called the Buddha nature, and it is an egg that can become a Buddha. Even if an egg is laid, it will not hatch unless it is warmed inside the mother's warm bosom. Our Buddha-nature has also developed a beautiful faith under the bosom of reward-body of the Original Buddha's compassion. Benei Yamazaki Shonin Japan (Light of Japan)