I absolutely love Serial Experiments Lain! The way it delves into complex themes like identity, reality, and technology is mind-blowing. The series challenges our perception of self and the interconnectedness of the digital world. The exploration of existentialism and the blurred lines between the physical and digital realms is so thought-provoking. It really makes you question the nature of existence and the impact of technology on our lives. Such a deep and philosophical series that continues to resonate with me long after watching it.