The Scrum guide defines the Sprint Goal as:
an objective that will be met within the Sprint through the implementation of the Product Backlog, and it provides guidance to the Development Team on why it is building the Increment.
However, I am a bit confused about the proper understanding of what is the Sprint Goal in terms of the tools which are conventionally used for leveraging Scrum and what happens if it doesn't have any well defined form?
Let's say we use Jira with a standard Scrum board, which allows us to represent the Product and Sprint backlogs. Also we use a kind of Confluence system, where we can track history of Sprint Retrospective.
In this terms, where and in which view the Sprint Goal should be described? Should it be a Confluence page with the pretty clear defined Sprint Goal? If we don't have anything like that, what mostly like could happen?