Passage: Returning to Mqhekezweni in December 1940, Mandela found that Jongintaba had arranged marriages for him and Justice; dismayed, they fled to Johannesburg via Queenstown, arriving in April 1941. Mandela found work as a night watchman at Crown Mines, his "first sight of South African capitalism in action", but was fired when the induna (headman) discovered that he was a runaway. He stayed with a cousin in George Goch Township, who introduced Mandela to realtor and ANC activist Walter Sisulu. The latter secured Mandela a job as an articled clerk at the law firm of Witkin, Sidelsky and Eidelman, a company run by Lazar Sidelsky, a liberal Jew sympathetic to the ANC's cause. At the firm, Mandela befriended Gaur Radebe—a Xhosa member of the ANC and Communist Party—and Nat Bregman, a Jewish communist who became his first white friend. Mandela attended Communist Party gatherings, where he was impressed that Europeans, Africans, Indians, and Coloureds mixed as equals. He later stated that he did not join the Party because its atheism conflicted with his Christian faith, and because he saw the South African struggle as being racially based rather than as class warfare. To continue his higher education, Mandela signed up to a University of South Africa correspondence course, working on his bachelor's degree at night.Earning a small wage, Mandela rented a room in the house of the Xhoma family in the Alexandra township; despite being rife with poverty, crime and pollution, Alexandra always remained a special place for him. Although embarrassed by his poverty, he briefly dated a Swazi woman before unsuccessfully courting his landlord's daughter. To save money and be closer to downtown Johannesburg, Mandela moved into the compound of the Witwatersrand Native Labour Association, living among miners of various tribes; as the compound was visited by various chiefs, he once met the Queen Regent of Basutoland. In late 1941, Jongintaba visited Johannesburg—there forgiving Mandela for running away—before returning to Thembuland,...

Question: What type of impression did Mandela have of these gatherings?
he was impressed