Hexagram Yi-King 29.
Gallery of logic facial emotions.

scientific psychological researches or psychoanalytic investigations

If you are engaged in psychology or psychoanalysis then hexagrams Yi-King and images of human emotions can be applied as logic symbols which allow to systematize results of psychological researches, or allow to plan and carry out psychoanalytic investigations according to analytical system of the canon of changes Yi-King.
If psychological researches or other scientific investigations are coordinated with symbols of the canon of changes then will be comprehensive and overall as hexagrams and facial features are universal logic and analytical system which allows to describe any possible combinations of world phenomena.

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Features of a face and associations of emotional conditions.
Eyebrows: dreams cannot be actual / unfeasible imagination.
Eyes: objective world vision / realistic illusions of outlook.
Mouth: feelings can be valid / sensations have verification by reality.

Dreams can be unreal even if the objective world verifies real feelings.

Formulas of analytical philosophy.
1 (eyes) obligatory opportunity is (eyebrows) doubtful probability of (mouth) feasible event.
2
(eyebrows) fictitious ideas are (eyes) actual prototypes of (mouth) cognizable world.
3
(eyebrows) limited knowledge is (eyes) true reflections of (mouth) hypothetical reality.
4
(eyebrows) inadequate imaginations are (eyes) promising anticipations of (mouth) desirable validity.

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Following 30 symbol of physiognomy.
About emotions in scientific psychological researches or psychoanalytic investigations, and also facial images of psychiatric patients.