So yeah, why does God actually exists? Like where did he come from. And why does anything exists, like what is the reason for existence itself?
Humans since recorded history, as in back to the cave era, has thought something greater than themselves is acting in creation.
Cave etchings show what appear to be what we'd call sympathetic magical rituals entered into by the group and prior to a hunt.
Seemingly believing if they acted out the hunt prior the hunt would be the success their ritual portrayed.
Archeology also shows what was the first idea or image of a glorified personage being that of the female.
Early primitive minded person's were amazed that woman could swell up for a long time and then in a gush of blood and water bring from herself a tiny version of themselves, male or female. And feed that new life from her own self, her breasts.
What are referred to as goddess figurines have been found all over the world. Glorifying the female form in all shapes and sizes. Even pregnant.
Many early primitive people's excavated burial sites have been found to not only contain the body of the departed but also their belongings. And many of those graves were first layered with Ochre, the first red paint, or red clay pigment. This is thought to represent the deads return to the state they were born to life from.
They were born of blood and water so their dead body was turned about from life in the same sense.
All religion is human made. And you'll notice all deities of all religions, even ours, have human personalities.
We feel a compulsion by nature to be beholding to something we believe is greater than ourselves for our existence from birth unto death.
It has rules so that the human family is not left to exist in the seeming chaos that would ensure if we were left to our own carnal mortal desires to sustain and flourish self first and foremost.
And all religions have adversarial identities that are juxtaposed to those rules. And punishments or reward for disobedience, the rules non-compliance, or rewards for obedience.
And every faith regardless of what it holds true teaches there is something more , life of a sort, after this one. Because the intrinsic ego of I and self must go on. We cannot fathom death being annihilation of that sense of being and purpose.
That is why every religion is grounded in the faith it is true. Allegiance thereto is an individual preference but it is all grounded in that same universal principle we've carved out for ourselves; hope! That it is true.