The wandering that Chuang-Tzu want to achieve is to liberate mind. To Chuang-Tzu, mind has two kinds of state, namely wu and wo. Wu means that mind is to be united with Dao, while wo means that the mind gets lost in right and wrong. The former expresses the freedom of mind, the latter is contrary. Therefore, in order to get the freedom, mind has to wipe out wo. Chuang-Tzu names this process as "I lost myself". "I lost myself" is comprised of two parts, the first one is to reject other ego and the second one is to reject my ego.