The idiomatic expression "a lot of relief" means to experience a sense of great happiness, joy or satisfaction due to the resolution of some problem or stressful situation. Full definition
Paul Merski, who heads congressional relations at the Independent Community Bankers of America, an industry group, told me there is a lot of relief in the mortgage - lending space in the bill specifically. (vox.com)
There's not a lot of relief on the way, either, for companies trying to find industrial space. (renx.ca)