Atheists: What are your thoughts on pantheism?
Specifically naturalistic pantheism. Theists can feel free to answer too if they have something interesting to say, but "pantheism is wrong because God is personal and supernatural" is not what I'm looking for.
Some quick info so you know where I'm coming from: Pantheism is perhaps best defined as the recognition that all things are fundamentally part of one unified whole. We can call that whole the universe or God, but I prefer Oneness, to distance it from the scientific understanding of the universe and the theological understanding of God. When we do use the word God, it's not because we're monotheists, but because we view this mysterious Oneness as metaphorically equivalent to the deity that monotheists worship.
Just to be completely clear, (naturalistic) pantheism does not involve the supernatural. God is not a bearded man in the sky, but rather the sky itself. It is not a person, and it doesn't think, know, or act. It simply exists. The pantheistic afterlife is nothing but a dissolution of consciousness and a return in full to the Oneness. Unlike most belief systems, pantheism doesn't promise rewards after death or good fortune on Earth. It just affords a means of happiness and inner peace. It doesn't dictate any particular way of life, instead trusting that the transcendence experienced by communing with Oneness will come with intuitive behavioral changes.
I am mostly interested in hearing thought-provoking opposing viewpoints. Why is pantheism wrong? I will probably hang around to watch and respond to answers. Best answer goes not to the person I agree with but to the person who makes me think the most.
@Tao Man: I think you've confused pantheism with polytheism. Or something. I'm not sure where you're getting "thousands" of gods; pantheists do not believe in any deities.
@Reaper, Speed: The word "God" is used metaphorically. As I said in the question, I prefer the term Oneness to emphasize that this is not the God of monotheism.
It seems like the prevailing viewpoint is that pantheism is "sexed-up" naturalism, which is true. I don't see that as a failing of pantheism. The point of pantheism isn't to explain the origin or workings of the universe. It is to promote peace and happiness by offering a spirituality, without the supernaturalism and negative social value of other spiritualities.