The story in the Bible is about Daniel and three others from a kingdom overtaken by the Babylonians. These four men were taken into Babylonia to be trained to enter into the King's service. Meanwhile, they were to eat the royal food. The four men requested to eat their own food to not be defiled with the royal food. The asked to be tested for 10 days - eating vegetables and drinking water - if they looked healthier than the other men, they would be allowed to continue eating their food. They ended up being the smartest of all the men and were hired into the King's service.
The link between these two stories is that the men stuck to their beliefs. Larry continued to read the Bible - even though he was being persecuted and Daniel ate the food of his beliefs. God rewarded them both - Larry with more friends than he ever thought he'd have and Daniel with a job in King's service. And both acted as a witness for the Lord. Both brought believers to God.