Can you manipulate another persons dream?

Can you manipulate another persons dream?

Chris Idzikowski (Director of the Edinburgh Sleep Centre) gives expert video advice on: Why do we dream?; What is a dream?; Does everyone dream? and more...

It is possible to manipulate dreams by providing some stimulus externally. I'd almost say an emotional stimulus, something that is most relevant to the person is most likely to get in without waking the person.