Man has not always been "spiritual". As usual, you do nothing more than endlessly repeat you fundamentalist dogma.Boss thinks because primitive men all came up with god it must be true.
No, Boss does not think man "came up with" anything. YOU are the one who made that argument and you never backed it up. Man has always been spiritual, since man has been man. If you can offer valid scientific evidence this is not true, do it!
At no time have you ever made any case for man always being "spiritual". You have never even been able to define what that means.