en_tn/lam/05/17.md

For this our heart has become sick

The "heart" represents a person's emotions. This speaks of a person being discouraged as if their emotions were sick. AT: "Because of this we are discouraged" (See: rc://en/ta/man/translate/figs-metonymy and rc://en/ta/man/translate/figs-metaphor)

for these things our eyes grow dim

This means that they have a hard time seeing because they are crying. AT: "and we can hardly see because our eyes are full of tears" (See: rc://en/ta/man/translate/figs-explicit)

for Mount Zion lies desolate

Here "Mount Zion" refers to Jerusalem. The phrase "lies desolate" means that no one lives there.

jackals

These are fierce wild dogs. See how you translated this in Lamentations 4:3.