Basically...Putin just wants to preserve the "Russian way of life," which is the society that reflects their history and culture. This isn't any different from the "American way of life." I don't think he wants empire or anything, though buffer zones of protection are pretty important for national security.
I definitely think the USA is overreaching by expanding the anti-Russian NATO alliance to include these former Warsaw Pact countries. I thought that with the end of the cold war we could have disbanded both NATO and the Warsaw Pact.
edit: oh crap, yeah it is from 2014. This is one issue where the mainstream media definitely has failed us. They act like Putin is the most evil person on the planet who has personally enslaved Russian society and wants an empire. Basically they're projecting everything that they actually are onto Putin. And because Putin is white, he's fair game to hate on. No joke on the last one.