Attention Fellow Metaphor Seekers!

So I’ve been trying to think of what the best metaphor for life is, and I thought that it would be interesting to see what other people think too. If you have any thoughts about life as a metaphor, say so as a comment. It can be about any facet of life, looking at it from any angle, but make sure you explain why you think so. Feel free to share, this is a judge free zone! I’m very interested to see what other people think.