In The Chairman’s China, a struggle session was a time when comrades would gather class enemies to be humiliated and denounced for their crimes. This is good and definitely has its place within your spiritual practice, but class struggle is not limited only to these activities. Class struggle is something that many people do not immediately understand and some may need ideological guidance and theory in order to really get what the ideology is about. The bourgeoisie are also propagating their ideology to the masses at an alarming rate and with dangerous levels of effectiveness. The bourgeoisie own the media, the state, and even the minds of so many people who we would consider “normies” for lack of a better word. These people think the news and the educational system is educating them while they are being indoctrinated into mental subservience to one of the worst regimes on the planet. They think they are idealistic and progressive even though they are being prepared for exploitation and slaughter.
Depending on how revolutionary your people are, you should adjust the material. You can’t talk to new leftists about Palestine because they are probably still scared of being labeled antisemite by the sympathizers of the regime occupying that country. You will also not want to bore seasoned revolutionaries with beginner theory unless members are messing things up and need a review. Some people are involved with single-issue politics such as environmentalist or pirate parties and they may be confused about communism and how it would relate to their specific concerns. A good struggle session is held in a public place not only to propagate the ideology but to make it clear what the comrades believe. Do not treat it as anything strange or clandestine, treat it like a normal conversation and let people listen in if they want.
Another thing about struggle sessions is that they do not always need everyone to bring books or read theory beforehand. Discussion about theory and dialectical materialism are good topics for any person. Current events are good but you can also get into more general conversations that relate to it such as assimilation vs. liberation, sex work, national identity, origin of the family, differences between domestic and paid labor etc. as these are all topics that relate to class and class struggle even if they aren’t directly from our ideology. Good communists devote themselves to the ideology while great communists understand that it is not something to be devoted towards, it is a tool to build socialism and to help the masses articulate the problems of society and to take control of the economy from bourgeois forces.