Lauren Booth, 43, half-sister of Cherie, has given up alcohol and pork, prays five times a day and never leaves home without her hijab.
‘I sat down and felt this shot of spiritual morphine, just absolute bliss and joy,’ she said, talking of her experience in Om.
She added: 'I always felt that the ummah [Muslim community] is a very loving, peaceful place and I am proud to be a member of it.'
Former Prime Minister Tony Blair was himself a religious convert, announcing that he had turned to Catholicism after leaving 10 Downing Street in 2007.
Tony Blair’s sister-in-law has converted to Islam after having a ‘holy experience’ in Iran.
Broadcaster and journalist Lauren Booth, 43 – Cherie Blair’s half-sister – said she now wears a hijab head covering whenever she leaves her home, prays five times a day and visits her local mosque ‘when I can’.
She decided to become a Muslim six weeks ago after visiting the shrine of Fatima al-Masumeh in the city of Qom.