Find the primary theme of the following excerpt.
Life is a gift, a chance to make a difference, a miracle as precious and unique as a snowflake.
The primary theme of this excerpt is the value and uniqueness of life.
Complete the following task based on the instruction and optional input provided.### Instruction:
Find the primary theme of the following excerpt.

### Input:
Life is a gift, a chance to make a difference, a miracle as precious and unique as a snowflake.

### Output:
The primary theme of this excerpt is the value and uniqueness of life.