Buddhism vs Gnosticism vs Christianity

Buddhism seems to want the opposite, to become nothing. Rather than facing life and overcoming challenges, really being involved in life, Buddhism seems to withdraw from life.

Given my limited knowledge of Buddhism, this is how I perceive it as well. This reminds me of Gnosticism where the material is treated as evil and something that the human essence must escape from. There is one important point, however, where I think Gnosticism edges Buddhism in this aspect, and this is the introduction of a third party component in the molding of the soul, i.e. the Holy Spirit. I just don't see how it is possible for a soul to become divine on its own. For instance, according the Noble Truths and the Eightfold Path, soul development can be attained without dependence on any other entity--this defies common sense in the context of the law of conservation of energy. Gnosticism, and Christianity in general, provides a clear solution by providing the soul with the Holy Spirit, that is, it is the Holy Spirit that nurtures the human essence to attain divinity.

But there is more. Christianity does not only save the human essence (with its identity intact), but the material as well. Whereas Buddhism and Gnosticism promise to save the soul and condemn the body, Christianity promises the salvation of BOTH soul and body. This is why I think Christianity is the superior path.