Surah Al-Kahf is the 18th chapter of the Quran, consisting of 110 verses. It is named after the story of the "People of the Cave," who sought refuge in a cave to escape persecution and fell into a deep sleep for many years. The surah emphasizes themes of faith, patience, and the importance of seeking knowledge. The surah also includes other significant stories, such as the tale of Moses and his quest for knowledge, and the story of Dhul-Qarnayn, a powerful ruler. These narratives highlight the trials of life and the importance of relying on God for guidance and support.