It's the second: a myth who has become a man.
Independent, 9 October 1996, reprint from February 1990:
Nelson Mandela, the myth finally made man, walked out of prison yesterday with a smile on his face, but iron in his soul. He immediately delivered a solemn warning to President F W de Klerk that while he wants peaceful negotiations with the government, he will not cede an inch in the struggle he has been waging for half a century, in the name of the African National Congress, against white-minority rule.
In this case, Mandela had been incarcerated for so long that during that time had gained an almost mythical status. When he materialised in public life, the myth was made a man.