dream of dad part 8

mom told me that she dreamt of dad on monday, in the dream, mom and yao came out of his car, then she recalled that she has forgotten her keys, mom then searched frantically for her phone and called dad, but the screen on the phone showed a beautiful scenery, it is a scenery of a snowy plan with forests and mountains. why is it that both mom and me dreamt of dad in a cold environment?