In perspective, what are the lines that run parallel to the horizon line?

In this style of filmmaking, often used by alfred hitchcock, the camera does not appear to follow the action, but instead anticipates the action on screen. “objects and actors are visually blocked out within the confines of a predetermined camera setup …suggesting fatality or determinism”.

Drag the tiles to the correct boxes to complete the pairs match the meal to its primary sensory characteristic

In "a dream within a dream," which phrase is a context clue to the meaning of grasp / them with a tighter clasp?