The essence of this theory is the combination of "real image" and "virtual image". By using these images which have meaning outside themselves can convey good or ill luck .

其实质是“实象”与“虚象”相结合，用“附意于象外”的“义象”来尽吉凶之意。

youdao

For although he made much of his fortune for himself, by founding an engineering firm called TransTec, Mr Robinson's career was forever altered, for both good and ill, by one extraordinary stroke of luck.

ECONOMIST: The

PR, bad luck and opponents who have whipped up public emotion by appealing to irrelevant and ill-defined social values.

ECONOMIST: Letters