"Lost" has two different meanings. One is "unable to find one's way; not knowing one's whereabouts"- like being lost in the middle of a large mall, with hundreds of other people surrounding you. The other is "that has been taken away or cannot be recovered". Like using your virginity, for example. Unfortunately, neither of the definitions describe the feeling of being lost Maia feels. Everything was fine, until she was reminded of something she'd lost, a long time ago...
Finding a pen you've lost earlier? Easy, just look underneath the pile of books you've been heavily trying to revise - unsuccessfully. Trying to find a mother you'd lost 12 years ago? Don't bother, you'll probably end up hurt and even more lost than before. It's like finding yourself lost in a forest. Stay still and someone can come and find you. Keep moving around deeper into the forest and expect to live there for the rest of your life.