Senses
升堂 to hold court
(of a magistrate in former times) to preside over a trial in a courtroom or to enter a hall to conduct official business
升堂 to enter the hall
to ascend to or enter a main hall; often refers to gathering for a formal meeting in ancient contexts
升堂 to master the basics
to reach a certain level of proficiency in learning or art, or to be admitted as a student; see also 升堂入室