(A talk on the Surangama Sutra given by Master Sheng-yen on Dec. 19, 1993, and edited by Linda Peer and Harry Miller.) We have been studying the section of the Surangama Sutra called "The Twenty-five Kinds of Perfect Penetration." Perfect Penetration is the state of thorough, ultimate enlightenment, and twenty-five methods of attaining such enlightenment are described. There are actually infinite numbers of methods of practice through which we can attain enlightenment. These twenty-five are simply used as examples.more