like light at the end of a tunnel

like light at the end of a tunnel

Signifying a hopeful end, conclusion, or resolution to some particularly difficult, unpleasant, or arduous journey or process. After not knowing what was wrong with Bill for so long, finally getting a diagnosis feels like light at the end of a tunnel for us. I've been working on this book for nearly four years, so finishing the final chapter has been like light at the end of a tunnel.
See also: end, light, like, of, tunnel
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.