WordNet
think back
v. recapture the past; indulge in memories; "he remembered how he used to pick flowers" [syn: remember]
Usage examples of "think back".
Gary could only think back to the first night after they had left Dvergamal, when he had seen Mickey making some secret deal with the pixie.
The obstinacy with which he had clung to his beliefs caused Candide to think back over all the adventures they had been through together.
It made him wince to think back to the day Marius had taken him into the building for the first time.