Sahin believes Madrid is the crowning achievement for a footballer, and has explained that he wants his country and hometown to be represented at Los Blancos.
"When the offer came from Madrid, I began to think. Real is the highest achievement for a footballer. Real is like a myth. Everyone wants to go there, but not everyone is allowed to play for Real," Sahin told Kicker. "I want Borussia Dortmund, the Bundesliga, Germany, and Turkey to be well represented in Madrid."
In preparing for his change, the midfielder not only spoke with his friend Mesut Ozil about the Blancos, but also watched the team a couple of times.
"I cannot understand that Real's style of play is sometimes criticised. This weekend I watched the 6-2 [win] against Sevilla on TV - that was very nice, attractive football," he said.
"Real score an incredible number of goals and there really is nothing more attractive than goals. I think they deserved their cup final win against Barcelona."
Madrid beat Barca 1-0 in last month's Copa del Rey showpiece but were knocked out of the Champions League by the Catalans, who last night clinched their third straight La Liga title.