Explanation:

- The passage discusses imagination as a uniquely human capacity for envisioning what is not real, which supports invention and innovation.

- It highlights the transformative and revelatory nature of imagination, focusing on its power.

- The blank before "with humans" suggests an action involving connection or understanding with others.

- Option 1: empathise is the correct choice. Imagination allows us to empathize with those whose experiences are foreign to us.

- Option 2: guide doesn't fit as it implies leading others, not relating or connecting.

- Option 3: discuss is about conversation and doesn't align with understanding experiences.

- Option 4: assimilate implies absorbing or integrating, which is not relevant here.