Yes, nearly impossible to apprehend the phenomenas recorded within this symbolic system through correlations or conceptual representations, yet by defining clearly enough the content of the term 'justice' for instance, we may discover something very accurate about some general psycho-behavioural natures of Metal .
There may have little to no differences in senses organs between individuals, but there are as many perceptuals and cognitives worlds as there are human beings on the Earth.
Same senses organs and channels, but different ways of seeing, looking, hearing, listening... thinking, understanding etc.
Can the cultivation of 'virtue' be really started without defining individual pre-heaven differences first ?