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]
(..) getting dinner ready. 'And he was late, you see.' - 'During a raid? ' - 'During a raid, you see.' 'He said, "Why aren't you in that shelter?"' - 'Why weren't you? ' - 'Well, because...' I was sorry to hear about Control, Mr Smiley. 'He said Tarr called him (..)2011 Tinker Tailor Soldier Spy