The phrase "lose sight of" refers to the act of losing focus or losing the ability to see or understand something clearly. Synonyms for this phrase include "lose perspective," "miss the point," "lose track of," "forget," "overlook" or "neglect." Each of these synonyms emphasizes the idea of becoming distracted or losing awareness of something important. "Lose perspective" implies losing a sense of context or understanding, while "miss the point" suggests failing to grasp the significance of something. Similarly, "lose track of" or "forget" imply simply forgetting about something, while "overlook" or "neglect" suggest a failure to pay close attention to something.