Final answer:
The Beatles ceased touring due to the overwhelming nature of Beatlemania, a desire to improve their music's quality through studio work, seeking spiritual and creative growth, and shifts in the socio-political landscape which demanded more serious and politically-engaged music.
Step-by-step explanation:
The Beatles stopped touring for various reasons. At the height of their fame, technology and culture converged to create a context where their music could be easily recorded and broadly distributed, which played a significant role in spreading their influence.
Nevertheless, the relentless pressures of touring, the desire for artistic growth, and the changing social and political climate contributed to their decision to cease live performances.
In particular, the band's inability to hear themselves play over the screaming crowds, dissatisfaction with the quality of their live performances, and the overall mayhem associated with Beatlemania made touring increasingly unappealing.
Additionally, the Beatles sought more time to experiment creatively in the studio, which touring did not permit. Their spiritual journey, including the trip to India, further shifted their focus from performing live to exploring new realms of musical expression.