The Page on learn.gold is one of the resources you can use to organise content. It is literally a single web page, linked from your course area and is particularly useful for taking chunks of text off of the top level to help streamline your course area .
Separating out content into pages means the overall course area is shorter and easier to scan for the person reading it. It avoids the so-called 'scroll of death'.Pages can contain embedded sound and video / images / links / downloadable files and, of course, text. They work across a range of devices and open near instantly - so the students don't need to download anything before viewing it. A student can easily adjust the font size on their browser - making a Page more accessible than an uploaded file.