Rational is rational and logical, which is different from bodily, emotional and sensual. This is competence and knowledge, skills and abilities, and not feelings and premonitions, desires and impulses, impressions and experiences.
Rationality is an attitude of consciousness, a type of thinking and a personality trait when decisions are made by choosing the best option through comparison based on facts and logic, rather than emotional impressions, impulsiveness, desires, feelings and intuition.
As a rule, greater emotionality leads to a decrease in rationality: emotional people tend to have spontaneous, unexpected, emotional reactions rather than consistency and following a plan. However, in people of a high level of development, high emotionality coexists perfectly with remarkable rationality.
If high emotionality is combined with a good head, rationality, meaningfulness and responsibility, this is joy and goodness: it is useful for the person himself, and pleases those around him. If the level of meaningfulness is below the level of emotionality (either emotionality is excessively high, or there is not enough prudence), then high emotionality already interferes. A strong predominance of emotions over prudence is characteristic of children (including non-children), poorly educated people and people with a disturbed psyche.
Emotionality and thinking
The thinking of an emotional person has its own characteristics. See Emotionality and Thinking