In one’s mind’s eye: in one’s imagination or mental view (Oxford Encyclopedic English Dictionary).
It’s seeing more than just the seen. It’s your mind’s own unique view and interpretation of what is seen. It is about ‘seeing’ an emotion,a story, a poem, a song, a memory, a past etc., that transcends, yet originates from and connects with, what is seen … and then evocatively conveying this ‘seeing’ — or ‘connection’ made — through the title, a quote, poem, story… or a short or long description added to the image.
It’s about using your imagination, your creativity, towards new ways of ‘seeing’ and connecting with an image — one either captured through the lens or expressed through an artistic media — and then effectively communicating through words, this connection your mind has made, for other minds too to ‘see’ and ‘connect’; and perhaps, be inspired by it.