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Huānyíng guānglín
Firstly, lets break down the phrase.
出 means “going out” or “exit” as a verb;
入 means “coming in" or “enter” as a verb;
平 means peaceful, peace, harmony, harmonious, tranquil, etc
安 means safety, safe, security, secure, stable, etc.
Now, combine the first two Chinese characters, it means “going outside and coming inside”;
Then 平安 should be combined as together to form a new meaning as “safe and sound as in an intact piece”;