The Trojan horse of Greek origin was used to destroy a city. The symbiotes that theoretically invaded larger cells actually benefited the host organism. The mitochondria generated energy and the chloroplast generated sugar from sunlight.
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.