I'm not trying to imply that there are no reason for being a theist.
I'm just curious what folks feel justifies their theism. What knowledge a person personally has to justify a belief in God.
Atheism is unsatisfying. For example, what is the nature of the subjective experience of consciousness? Is it physical? If so, what laws of nature describe it?
Certainly the electrons buzzing around in the brain with their electrostatic forces and quantum mechanic wavefunctions collapsing are physical, describable by physics (I call this the physical realm). But consciousness and its contents (ideas and such) are not describable this way. Therefore, these are not physical (I call this the spiritual realm, anything not in the physical realm).
And so, using this simple observation, it is worthy of belief that there are things outside of the physical realm. And it seems like, since there is the sense of purpose and direction in our mind, there is a master divine being having the same attributes. And it seems like there must be a purpose for existence, for being, for reality to exist. God provides the reason.
One problem, I think, is that atheists seem to only focus on the Christian concept of God which is clearly wrong.