"Break to harness" is a term that describes the process of training horses to accept equipment, such as saddles and bridles, and to be ridden or driven in a carriage. There are several synonyms that can be used to describe this process, including "breaking in," "breaking to ride," and "breaking to drive." Other similar phrases include "breaking to work," "breaking to pull," or simply "starting under saddle." While the term "breaking" can sometimes have negative connotations, suggesting forceful or violent methods, modern methods of horse training focus on positive reinforcement and building a strong bond of trust and understanding between horse and handler.