in your mind's eye
US /ɪn jʊər maɪndz aɪ/
UK /ɪn jʊər maɪndz aɪ/

1.
in one's imagination or memory
:
•
I can still see her face in my mind's eye, even after all these years.
•
He pictured the scene in his mind's eye, trying to recall every detail.