Upon returning from Brazil in 1968 he found the religious life in the abbey completely changed in the aftermath of the Second Vatican Council.

After having spent some time at Fontgombault Abbey and Montrieux Charterhouse, he settled down as a hermit in Bédoin 1970, again with the permission of his superiors.

In 1974 he invited Archbishop Marcel Lefebvre to confer minor orders on the aspirants, for which he and his foundation were excluded from the Subiaco Congregation.

The abbey, which is attached to the usus antiquior, continues to depend from the Pontifical Commission Ecclesia Dei.

As the source for this news, the website of the French Bishops' Conference, puts it: “This integration manifests that this community pursues its way of belonging to the normal structures of the Church and of fraternal collaboration with the monasteries of the Benedictine family.” Calvet supported the foundation of the Chartres Pilgrimage, a three-day annual pilgrimage for traditional Catholics from Paris to Chartres, France.