This is the answer I found it online for you if you need anything answer I would just look it up it really does help :)
1. Peace and harmony
2. Your own place where u feel happy
3. You might feel a fashback at some point
I know that manifest destiny was the mindset of Americans that they were destined to stretch from coast to coast.
The Louisiana purchase was during that time. Napoleon didn't have the troops to keep Louisiana so he sold it to us for cheap.