My posts in the past have focused heavily on Liliana and her relationship with the men in her life, as well as her facing her own past and future.  However, there is one relationship I haven't mentioned that is very important to me. 
Liliana begins as a sort of big sister to a young Collector Julia.  They become  close and Liliana becomes very protective of her in a maternal way.

This song in its original form is one of my favorites. When I heard this version a few years ago on one of my favorite television shows, I bought it immediately.  It's something I think any big sister would wish for their younger sibling, and also a mother would wish for their child.

And of course the thought of staying forever young is especially applicable to every Collector.  :)

Audra Mae-Forever Young