Original: Joachim had given Brahms a letter of introduction to Robert Schumann, and after a walking tour in the Rhineland, Brahms took the train to DÃ 1\/4 sseldorf, and was welcomed into the Schumann family on arrival there.
Simplified: Joachim told Brahms to go and see Schumann and his wife Clara in DÃ 1\/4 sseldorf.