Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Explain the main thesis of this philosophical essay.

### Input:
The meaning of life can be interpreted differently by different people, depending on their circumstances and beliefs.

### Response:
The essay argues that the meaning of life is subjective and the definition of meaning should be determined by the individual according to their own beliefs and experiences.