How I became a convert to the cult of Marina Abramovi

'The grandmother of performance art' had people openly weeping at New York's MoMA. Zoe Williams spent a whole day in her presence at her long-anticipated London show. Did she break down? Robert is a 46-year-old psychiatrist and Elisa is 28, and from Italy, and they both arrived outside the Serpentine gallery at around quarter to six on Wednesday morning. They were waiting for the opening of the Marina Abramovi exhibition Elisa had seen her three times already: on London's Southbank, in M...