Upper trigram
☲
Fire · Li
Clarity and attachment.
FamilyMiddle daughter
ElementFire
Hexagram 38 of 64
☲☱ Opposition
Two forces facing different ways.
Lower trigram
☱
Lake · Dui
Joy and openness.
FamilyYoungest daughter
ElementMetal
The image
Fire above, Lake below.
Fire over Lake: clarity and attachment meeting joy and openness.
That combination is the whole meaning of hexagram 38. Nothing about it is arbitrary — change either trigram and you get a different hexagram with a different reading, which is why the 64 form a system rather than a list.