If the "non-material" is required to explain material phenomena, then it must be causally related to the "material"...but at that point what exactly makes it "n

If the "non-material" is required to explain material phenomena, then it must be causally related to the "material"...but at that point what exactly makes it "non-material" at all? "Non-material" just sounds like a bad label for material things we don't understand. We don't understand how our cognition or consciousness works, but it seems silly to assume that because we don't understand we fundamentally can't understand. People who push the mysterious interpretation of dualism are just trying to find a place for the divine that is separate from the material but in doing so they baselessly seek to circumscribe our capacity to understand.