Article continues below advertisementYoko Ono is spending her final years in reflective seclusion, far from the spotlight she once craved, with sources telling OK! she now believes she has changed the world and now wants the peace of watching it from a distance.The avant-garde artist, musician and activist - who stalked John Lennon before they met - has retreated from public life decades after rising to global fame in the 1960s and meeting Lennon, whom she married in 1969.