What does the phrase mean; "A snake always sheds its skin."?

or:What does the phrase mean; "A snake always sheds its skin."?or:When there are tough things in your life, renew yourself and see what you can do to

or:What does the phrase mean; "A snake always sheds its skin."?

or:When there are tough things in your life, renew yourself and see what you can do to releive stress.

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