In 1651, Rembrandt returned to the theme of his etching of showing the blind Tobit hastening to greet his returning son. The door already open, Anna has rushed out to meet Tobias and a faithful mongrel scurries in, rubbing its head against the old man's coat as he stumbles forward, missing the door. No more than a fleeting moment in the biblical account, this is transformed by Rembrandt into a poignant image of the frailty and uncertainty of blindness in old age. For whereas in the early etching Tobit was already at the door, here he struggles to find it.