The PSCD lesson focuses on the importance of positive relationships and the phrase “No man is an island,” emphasizing communication and connection. It highlights the significance of having friends and best friends (referred to as “besties”) and discusses what it means to be a good friend, such as sharing, spending quality time, and being supportive in both enjoyable and difficult times. Additionally, the lesson underlines the value of real-life interactions over purely online friendships and the joy and support true friendships bring.