1
general::
A fresh start; renewed vigor and good health, as in Since they bought his store Dad has had a new lease on life. This term with its allusion to a rental agreement dates from the early 1800s and originally referred only to recovery from illness. By the mid-1800s it was applied to any kind of fresh beginning.
American Heritage Idioms
2
general::
Phrase(s): a new lease on life
Cliché a renewed and revitalized outlook on life. • Getting the job offer was a new lease on life. • When I got out of the hospital, I felt as if I had a new lease on life.
McGrawhill's American Idioms And Phrasal Verbs