I saw the dead, both great and small, standing before God’s throne. And the books were opened, including the Book of Life. And the dead were judged according to what they had done, as recorded in the books.
(Revelation 20:12 NLT)
Our current lives are developing stories in the pages of the books in heaven. One day each of our stories will be read as an open book and we will be judged (sentenced) by what we have done [our whole way of feeling and acting, our aims and endeavors] in accordance with what was recorded in the books. It’s all in the books.