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 theme of the following text.

### Input:
The mountains were dotted with snow and the chill from the wind reminded her of the winter days she’d spent playing in the snow when she was a child.

### Response:
The main theme of the text is childhood nostalgia, particularly for the feeling of winter days and playing in the snow.