She grew up 'in the shadow of' her very popular sister. [=people did not notice her because of all the attention that was given to her sister]
He couldn't escape his father's 'shadow'. [=he couldn't escape the influence of his powerful/successful father]
a town located in the 'shadow' of the Rocky Mountains [=a town located very close to the Rocky Mountains]
(..) (cables snapping) (metal groaning) No ! You'll swamp us ! (screaming) Though l walk through the valley of the shadow of death... You wanna walk a little faster through that valley ?! Row ! Pull together ! (screams) (..)1997 Titanic