'Through the Tunnel' is a short story by Doris Lessing that explores themes of adolescence, independence, and maturity through its symbolic narrative. Writing an essay about the story requires understanding its literary elements, psychological aspects, and the cultural context of the author's background, while effectively articulating interpretations with coherent structure and textual evidence. Assistance in essay writing can be found on platforms like helpwriting.net, helping navigate the complexities of literary analysis.