Sometimes names function as a simple reference, but other times they reveal something related to one’s character. For example, if you stop to help a stranded motorist with a flat tire, the motorist may call you a “hero” or a “savior.” Names can be a revelation about a person.
YHWH Ra’ah or Rohi means “God is my shepherd.” A quick read of Psalm 23 will show what the author feels about the character of and relationship to this “Shepherd.”