Final answer:
Lennon was inspired by 'Through the Looking-Glass' for 'Tomorrow Never Knows', reflecting the theme of exploration and surreal experiences similar to Alice's adventures.
Step-by-step explanation:
Lennon took inspiration from 'Through the Looking-Glass' for 'Tomorrow Never Knows' (TMNK). This text is a sequel to Lewis Carroll's 'Alice's Adventures in Wonderland' and features the character Alice as she explores a fantastical world on the other side of a mirror, engaging in adventures that defy her expectations. Lennon's song captures the essence of exploration and the bending of reality that is a hallmark of Carroll's work.