That’s the common cliché. Like most such, it’s wrong. The funeral can bring consolation and closure to the living, but its chief purpose to commend the soul of the departed to God.
how you treat my body will have no bearing on my salvation.
It’s a Gnostic fiction that the bodies of the dead are of no account or importance – that they can be disposed of with little or no thought to dignified ceremony. The truth is that the body is intimately connected with our humanity and personhood. We’re not fully ourselves without our bodies, and it’s for this reason that they’ll be reunited with our souls when we appear before Christ at the General Judgment.
The body is not trash, to be disposed of as a thing of no lasting importance.
So what happens to my soul the moment I die as a born again Christian? What if I am taken from the game is a manner that completly destroys my body?
It happens.