The Rebbe clarifies that his intent is not limited to Chassidic synagogues but that all Jewish congregations, without exception, should learn Pnimiyus HaTorah. He supports this with clear sources, including the Rambam and Shulchan Aruch, emphasizing the ultimate goal of universal divine knowledge.
https://www.torahrecordings.com/rebbe/igroskodesh/015/011/5618