There are different words in English, too. You yourself have used a few; e.g., "plans". It's just that the standard term for the night hallucination is "dream"

There are different words in English, too. You yourself have used a few; e.g., "plans". It's just that the standard term for the night hallucination is "dream" and a standard metaphorical use of this term is roughly "ideal future". Generally context is sufficient to determine whether you are using the term literally or metaphorically. If you are determined to make it absolutely clear which use is intended, you can crack open a thesaurus, but when you would want to do this -- in a psychology paper, say -- is precisely when the context is particularly good at disambiguating the two uses.