Hi Audioyoda,
Here is the complete workflow that you can follow.
Click File > Import and navigate to the Adobe Premiere Pro CC project file itself this will import a folder with all the media associated with the timeline you choose, and the timeline itself, into your open project. The two timelines will not be dynamically linked.
The second way is to use the Media Browser window within Premiereto do the same thing. This method provides you with a bit more visual feedback than the first, but operates in the same way. Just navigate to the project file you wish to work with and pull across whatever you want. The benefit of this method is that you can also select bins not just timelines.
Regards,
Vinay