So revolutionary, in fact, that religious superiors disallowed publication. Tho Teilhard, as everyone called him, finished writing it around 1929, it wasn’t brought to light until his death, in French in ’57 in English translation in ’60. Even today few understand it & many are suspicious because it appears to fly in the face of traditional piety. But, while utterly contemporary & revolutionary, it’s Christian to its core. It’s joyful, hopeful & enthusiastic, as any Christian spirituality should be. It expresses a love of nature, a delight in scientific discovery, a rejoicing in progress & an almost childlike trust in a benevolent cosmos evolving in the unconditional love of a benevolent, forgiving God. It may offer the only integrative spirituality that can satisfy contemporary experience.