To answer the purpose of 'new' age spirituality, I think it is to make up for what religion seems to have lost through the ages. Science has created such a materialistic view of the world, so that people are beginning to neglect spirituality altogether. They can't see past what appears before their eyes. But, since we can't very well create a human being from raw scientific method, there must be something missing right? Also, I think the term 'new age' comes from the idea that we are entering the Age of Aquarius, where things will automatically be different given it is a new epoch.