noun a figure of speech in which a word or phrase is applied to an object or action to which it is not literally applicable.
You are using a metaphor anytime you describe something as if it were something else.
The metaphor is the Swiss Army Knife of writing.
She smelt of Heaven.
You aremy rock. or You area muddy road, ...
Visual metaphor: She was a painting.
Other senses: She was a fragrant rose, her skin was silk, she was a songbird, her lips were the salty ocean.
Non-sensory metaphor: She was a book of many secrets.
Ambiguous metaphor: She was the last train to Clarksville.
In general, a metaphor invites you to understand something about A by comparing it to something ...
Is this what you're looking for?
Some of these are synonyms more than metaphors, but I'm not sure that isn't what you might be looking for. The metaphors are buried in the examples given. Let me know and I can tailor it more.
cloud-lands/realm of giants
the blue (or blue yonder)
the land of the ancestors/gods