In Chinese culture, rats were seen as a sign of wealth and surplus. Because of their reproduction rate, married couples also prayed to them for children." Source: chinesenewyear.net/zodiac/rat
"In the Year of the Rat, we hope that everyone may do good deeds, speak good words, and think good thoughts. By practicing the Three Acts of Goodness, every journey in this world will be a path to happiness" he adds.