Upper trigram
☷
Earth · Kun
Receptive yielding.
FamilyMother
ElementEarth
Hexagram 36 of 64
☷☲ Darkening of the Light
Keeping your light hidden in hostile conditions.
Lower trigram
☲
Fire · Li
Clarity and attachment.
FamilyMiddle daughter
ElementFire
The image
Earth above, Fire below.
Earth over Fire: receptive yielding meeting clarity and attachment.
That combination is the whole meaning of hexagram 36. 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.