What is a tight packer in the book that is called The Slaved dancer?

In "The Slavedancer" by Laurence Yep, a "tight packer" refers to a person who is skilled at packing things efficiently, often under pressure. The term is used in the context of the protagonist's experiences in the brutal environment of the slave trade, highlighting the harsh realities and demands placed upon individuals in that setting. The ability to pack tightly is symbolic of the broader themes of survival and resilience in the face of adversity.