In the months leading up to his death, in 1970, the humanistic psychologist Abraham Maslow began worrying about his legacy. He’d been preparing to write a critique of Esalen ‘and its whole chain’. One of the issues he’d become concerned with was self-esteem. Maslow was famous, most of all, for his hugely influential ‘Hierarchy of Needs’, which said that people are motivated to fulfil certain psychological appetites. At the top of his pyramid was ‘actualization’, which was extremely difficult and had, he thought, only been achieved by a few. But just beneath that was ‘esteem’.

