Significance is the story of Caleb and Maggie, too soul mates that after a twist of luck find each other and their souls get connected. Caleb's family members are called Aces, people who can find their soul mates and then Ascend, get supernatural powers. But there hasn't been an imprint for a long time and now Caleb found Maggie. It's impossible for the two of them to stay apart, painful even. Maggie immediately finds herself in the middle of Caleb's weird but loving family and discovers all his secrets.
This book is what in my mind I have as emotional reads. The story is mainly about the two protagonists and the time the spend together, getting closer. There is much emotion and evolution in their relationship but not that much action, like Shiver by Maggie Stiefvater. The one problem with those kind of books is that it takes me a while to get through. Still this book was pretty great and there was some action after the first half.
Also, while reading it I found out that there are plans for a movie, which is a great thing :)