take on a new significance
take on a new significanceand take on a new meaning
[for an event] to acquire a new interpretation; [for something] to become more meaningful or more significant. All these monuments take on a new meaning when you realize the amount of human artistry and skill it took to design and build them.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.