The document discusses the Buddhist concept of anattā or non-self. It explains that according to Buddhism, nothing has a static, unchanging essence. People are constantly changing from moment to moment. We are merely a "stream" of constant change and becoming, without an inherent, independent self. All things arise temporarily due to conditional, interdependent causes and lack inherent existence on their own. Realizing this state of egolessness and emptiness is part of the Buddhist path to enlightenment.