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When Liu Qi turned to Zhuge Liang for advice on self-preservation, the latter refused to help him. On one occasion, Liu Qi tricked Zhuge Liang into climbing up a tower while visiting the garden. While they were chatting and feasting in the tower, Liu Qi secretly instructed to his servants to remove the ladder. He then told Zhuge Liang, "Now, nothing goes up to Heaven and nothing goes down to Earth. Whatever you say will be heard by me only. Can't you say something now?" Zhuge Liang replied, "Sir, haven't you read that Shensheng was in danger because he remained in Jin while Chong'er was safe because he was outside Jin?" Liu Qi understood what Zhuge Liang was alluding to, and secretly came up with an idea.