Most parents want to 'shelter' their children 'from' pain and sadness. [=to prevent their children from experiencing pain and sadness]
They 'found/took shelter' in a cave during the storm. [=they went into a cave to get out of the storm]
They were accused of 'sheltering' a criminal. [=giving a criminal a place to hide]
(..) And I had an idea. You wanted to stay clean? I wanted to be humble in this business and suddenly I said to myself: 'Perhaps I shouldn't be bashful?' Course. You can always stay in your shelter and find some dupe like Choucas. Am I right? Well,that's the way it is. Yes. (..)1981 To Kill a Cop