This metaphor likely originates from the dangerous, narrow ravines the ancient shepherd led his sheep through to reach new pastures—places where overhanging cliffs created terrifying darkness.
Depression, anxiety, and profound fear.
A shadow cannot exist without light. Therefore, the shadow of death implies that light (or love/life) is still present, even if obscured. Shadow of Death
The Hebrew word tsalmaweth literally refers to intense darkness or "deep gloom". This metaphor likely originates from the dangerous, narrow