A request for proposal for a specific program may require the company to review the bids to not only examine their feasibility but also the health of the bidding company and the ability of the bidder to actually do what is proposed.
The most obvious reason for using spatial imagery in metaphors is that the language of the primary processes (e.g., dreams) is spatial imagery. This can explain everything, but is trivial: it is always true, and you cannot make meaningful distinctions with it in a text or in changing contexts.
spatial coherence The extent to which a property exhibits a similar value over some spatial region. Spatial coherence is exploited in some illumination calculations in which a scene is broken down into discrete cells that can each be treated as a single entity. The scene is spatially coherent over each cell.