This lot means "居心叵測". It is an admonition not to harbor ill will toward those involved. Some people are jealous and suspicious of others whose talents surpass their own, and they are afraid that they will be supplanted, so they play tricks, sabotage, and spread rumors. But the most precious thing in human interaction is to believe in and support one another, and the most abhorrent is to harm and deceive behind one another's back. We should keep our hearts right and direct all our thoughts toward the good, starting with ourselves, not speaking of the merits or demerits of others, and not stirring up controversy. When we work together, we should engage in friendly competition, learn from the wise, and take advantage of each other's strengths and compensate for each other's weaknesses. It is important to always consider the position of others and not to be self-satisfied.