Attention: typically people refer to this bias as Mind projection fallacy, however I decided this name is better suited for the parent bias: Mind projection fallacies 🎨
An inability to distinguish between epistemology (how things are appearing to you, your map) and ontology (reality, how things really are). Two minds looking at the same thing may have different sensations of it (differences in how they mind work), experiences from it (different filtering, different Cognitive Biases influencing it)
Examples: Person who likes chocolate may equal it with tastiness. Person looking at rock may equal their own experience (photons bouncing of the rock and coming to their eye) with the rock itself (which for the bug with four base colors in the retina (instead of our three) will look different.)
Read Semantic projection fallacy to see a closely adjacent process in the realm of language.