Possible Clues:

• Prepare foie gras pâtés for this landmark ceremony
• Foie gras paste is served in process of initiation
• Stage-managed ceremony
• Ceremony marking stage of life
• It's part of growing up
• Confirmation perhaps of authority to go on speaking
• Reported entitlement of father's time involving son's marriage?
• Important life event
• It marks a certain stage of life, e.g. a pa's forties going crazy
• Ceremony marking a change of status