These ideas made me think of
mirror neurons. You know that feeling in your crotch, when you observe someone else being kicked in the nuts? Mirror neurons are a useful tool for language aquisition by mimicking and for feeling empathy.
Empathy and language are bounded by our sensory input and our body. Since all we observe from our environment comes from sensory input, these senses are a meaningful filter. It is plausible that since all observations are filtered this way, that those filters influence classification of those observations. Being cold or being lonely seems to excite very similar neurons in my head and produce similar feelings. This is not imo taking the metaphor as a standard, but really the sensaphor.
You are sometimes forced to use metaphors to explain your feelings to another person. Language might be universal, it is also highly personal and subjective. Understanding the unknown by asociation with a 'known' sounds good. But remember that 'known' is only 'known' by the person creating the metaphor. If the persons communicating both have different subjective impressions of things, the understanding the unknown by associating it with the known, becomes a veiled ignotum per ignotius (or: To explain a thing not understood by one still less understood)
imo