Primary Hexagram

No.21 噬嗑,Primary Hexagram
Biting Through, Resolve Difficulties, Dissipate Conflicts
Outer: Fire
Inner: Thunder
No.39 内卦, Nuclear/Internal Hexagram:蹇
Obstruction, Obstacles, Hardship, Challenges
Outer: Water
Inner: Mountain
No.22 综卦, Inverse/Zong Hexagram: 贲
Beautification, Appearance and Adornment, Decoration
Outer: Mountain
Inner: Fire
No.48 反卦, Opposite Hexagram:井
The Well
Outer: Water
Inner: Wind
No.55 内外对换卦, Swapped Inner Outer Trigrams:丰
Abundance
Outer: Thunder
Inner: Fire