I think the best metaphor was the sweater unraveling tradition because for rebecca it was the perfect parallel. Her parents probably loved her but they had their issues that were bleeding into her life... Even tho they made her who she was. So the sweater being something made with alot of effort and probably even love, it was okay to unfurl it if it didn't serve you right, perhaps even hurt you, brought out a side of yours that you didn't wanna feed. So you take it apart, you are still the things they made you... But now it gives you the option to build something that actually serves you. Something that keeps you both comfortable and warm.