A worldview is meant to give a systematic explanation of those inescapable, unavoidable facts of experience accessible to all people, in all cultures, across all periods of history. In biblical terms, those facts constitute general revelation. Philosophers sometimes refer to them collectively as the life-world, or lived experience, or pre-theoretical experience. The whole point of building theoretical systems is to explain what humans know by pre-theoretical experience. That is the starting point for any philosophy. That is the data it seeks to explain. If it fails to explain the data of experience, then it has failed the test. It has been falsified.
About 30 years ago there was much talk that geologists ought to observe and not to theorize; and I well remember someone saying that at that rate a man might as well go into a gravel-pit and count the pebbles and describe the colours. How odd it is that anyone should not see that all observation must be for or against some view if it is to be of any service!