The ten functions in the Traces are summarized by Chih-i specifically and generally. (l) Summarizing specifically the ten functions with the Four Siddhāntas shows that the ten functions can be divided into four groups and each of these four groups of function corresponds to each of the Four Siddhāntas. …

In terms of the functions that can be summarized by the Siddhānta of Counteraction, “destroying the three and revealing the one,” “abandoning the three and revealing the one,” and “covering the three and revealing the one” are said by Chih-i to correspond with the Siddhānta of Counteraction. This is because these three functions destroy illness of people and cause them to get rid of their attachment to the Three Vehicles. Since the Siddhānta of Counteraction is to counteract particular vices of people, it can correspond to these three functions. (Vol. 2, Page 449)