In today’s lesson, I learned about Joining, Grouping ,and Averaging Paths.

If you have two seperate objects that need to join together, you can either select both while holding Shift and move them or Command+G to group them.
Another way to join paths is by using the Direction Selection Tool and highlighting two anchor points that are close together. Then, head to the Object menu, then Path and Join. If the anchor points are nearby and need to be met in the middle, then Object, Path and Average.