Duality

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Across
  1. 4. A statement or situation that goes against another.
  2. 5. The bright, masculine, and active principle in Chinese philosophy.
  3. 7. Having two parts; double.
  4. 9. The state of being united or forming a whole.
  5. 12. Involving or affecting both sides or parties.
  6. 13. Contrary or completely different in nature.
  7. 14. The dark, feminine, and passive principle in Chinese philosophy.
  8. 17. The act of placing two things close together for contrasting effect.
  9. 18. Reflective surface that shows a reversed image.
  10. 19. A couple, a pair.
  11. 20. Something that completes or enhances another.
Down
  1. 1. Lack of clarity; having multiple interpretations.
  2. 2. Two-faced or having contrasting characteristics.
  3. 3. Equal distribution or harmony between two opposing forces.
  4. 6. Pleasant combination or arrangement of elements.
  5. 8. A seemingly contradictory statement or situation that may be true.
  6. 10. Division or contrast between two things that are completely different.
  7. 11. A struggle or clash between opposing forces or ideas.
  8. 15. Two things that are similar or complement each other.
  9. 16. Twice the amount or size; duplicate.