The conversation between human and AI assistant.
[|Human|] Explain the main thesis of this philosophical essay.
[|AI|] The central idea or thesis of this philosophical essay is that the concept of the "meaning of life" is subjective and can vary among individuals. The essay suggests that an individual's understanding and interpretation of the purpose or significance of life is influenced by their unique circumstances and personal beliefs.
[|Human|] 
Explain the main thesis of this philosophical essay.