Compose a poem of five lines in haiku format on the theme of nature.
Majestic mountains,
Lush forests, a flowing stream,
Nature's symphony,
Painted skies at dawn and dusk,
Pure serenity.
Complete the following task based on the instruction and optional input provided.### Instruction:
Compose a poem of five lines in haiku format on the theme of nature.

### Output:
Majestic mountains,
Lush forests, a flowing stream,
Nature's symphony,
Painted skies at dawn and dusk,
Pure serenity.