trigram with a
yin-yang symbol (fig.) in its centre is used for fortune telling.
Trigrams can be displayed in any order and the one shown here is
arranged with the three unbroken lines (☰)
that represent Heaven in the Northeast, its corresponding direction, and
opposite of the three broken lines (☷),
that represent Earth.
Clockwise, beginning from the North
this arrangement is: Wind (☴),
and Heaven (☰).