All living things including human beings have been programmed via evolution to perceive reality and the external world as something that is absolutely independent of the human conditions.
The Advent of an Independent Reality:
This is critical to facilitate survival since the emergence of living things to human beings. The focus is generally toward what is outside the self to whatever resources humans can take from the external to ensure survival and to be aware of threats externally.
The above is the primal basis of Philosophical Realism;
Thus the idea of an absolutely independent external world programmed by evolution for survival is actually a very primitive way of thinking in the ultimate sense.In metaphysics, [Philosophical] Realism about a given object is the view that this object exists in reality independently of our conceptual scheme. In philosophical terms, these objects are ontologically independent of someone's conceptual scheme, perceptions, linguistic practices, beliefs, etc.
It is this primitive thinking that led human beings to postulate [via a leap of faith] the idea of a God that exists externally and independent of the human conditions, to ensure their survival [eternal life] after physical death within the so-claimed independent external world, i.e. an external heaven.
The problem is this idea of an independent God [illusory] for salvation lead to all sort of psychological pains*, terrible evil and violent acts that effect the individual[s] and the collective.
* the desperate anxieties and Angst of what will happen after physical death.
The Emergence of the Concept of Interdependent Reality.
The facts of the terrible evil and violent acts from the concept of an independent external reality and theism led thinkers to look inward into the self's entanglement with reality. Note Socrates' Know Thyself!
The fact that Reality is Interdependent with the human conditions cannot be doubted as I had proven in this thread:
On a personal basis when one can override one's primitive thinking from an independent reality to a concept of an interdependent reality meant one can have freedom.
This is freedom from the burden of clinging to an independent external world and external God since there is no such thing.
When one realizes [need to be developed and cultivated] that reality is interdependent with the human conditions, one understand there no more interdependent reality after death or any need for salvation.
If there is no more interdependent reality after physical death, then rationally one will wean oneself from the terrible psychological pains of grasping an illusory independent reality for salvation and eternal life.
As such there is no clinging to an illusory soul nor God to survive in a so-claimed external world that exists after one's death.
When there is no more clinging to an illusory soul and God, there will be more personal sufferings chasing an illusion and no more terrible evil and violent acts committed in the name of a God.
Achieving a state of the concept of an Interdependent Reality is more optimal than the primitive basis of an absolute independent external reality which lead to terrible evil and violence.
The above is very pragmatic since Buddhism and the likes had already put the above [interdependent reality] into practice [black box basis] since thousands of years ago.