reading the comments here, it strikes me that somethings written down look like 'missions' i.e. a statement of the reason the company exists, and others describ

reading the comments here, it strikes me that somethings written down look like 'missions' i.e. a statement of the reason the company exists, and others describe a 'vision' i.e. a description of a future state. I wonder if one or the other is more important in your opinions, are both required at all? To be honest as product manager a tool I have to promote my product before I have engineers build the thing, is a strong vivid vision statement. "in the future our customers will be able to do x [for the first time/faster/cheaper/easier/better]"