You are all spirits. It is not that you "have" a spirit. To have a spirit implies that you are spirit and that you are also something else. Human beings are spirits. Being a human being is one of the ways of being a spirit.
There is only God. REALITY is God and has never required your belief. This reality no "one" survives. In Ultimate Reality no "one" is saved either - there is simply nothing to save you "from" : you have not emerged from any "other" and there is no place else for "you" to disappear into. Ever.
The exclusion of true esoteric religion has been the business of the State since ancient times. At first this was done via the establishment of the popular idealism of exoteric religious institutions in league with the State. But in modern times the same process is done by the strategic exclusion of conventional religious cultism, mystical idealism, and higher evolutionary Wisdom from the mechanisms of popular culture.
True religion is a universal and (necessarily) ego-transcending psycho-physical motivation of human beings. However, up to the present stage in human history, only relatively few individuals in any generation have been willing and able to make the gesture that is true religion (or, otherwise, true esotericism). In their great numbers, most people have, up to now, never yet been ready or willing to adapt to the true (and progressive) practical, moral, devotional, Spiritual, and Transcendental Wisdom-culture of right life.