Echoes in true stories can be about the repetition of themes. For example, in stories of survival, the theme of human resilience often echoes. People facing disasters like tsunamis or earthquakes show similar determination to live. This is an echo in the sense that the same basic human quality is seen time and again in different situations.
They can function as a form of communication from afar. For example, an advanced alien species might use radio echoes to send complex messages across galaxies.
Love's Offering was a Chinese movie that was released in 2014. It was directed by Chen Kaige and starred by Zhang Guorong, Faye Wong, and Zhang Xueyou. The movie was about a love story that took place in a modern city. It was about a rich man and his girlfriend. The movie was very popular in China and Hong Kong.
In fact, 'Echoes' is purely a work of fiction. The story and characters were made up by the author for entertainment purposes and don't draw from any true events or people.