This can be written -4-1.
Here the direction of both the number quantity and number quality (i.e. dimension) is negative.
In psychological terms this relates to both perceptions and concepts which are inner directed, enhancing self development.
Just as the previous stage involves the ability to break (whole) objects coherently into parts, this complementary stage involves the ability to break the (whole) ego into parts. In other words one learns to play different roles which become parts of an overall self identity. Again affective and cognitive aspects are involved. The affective aspect involves the ability to deal with a wider range of emotional feelings. The cognitive aspect represents the ability to exercise judgement in terms of practical decision-making.
Again the ability to integrate (part) roles with the overall (whole) personality involves a similar set of psychological dynamics as outlined in the previous section.