Russia constantly manipulates about the danger from NATO ("NATO is approaching Russia's borders"). Can someone answer the simple question "What interests NATO to attack Russia?" (what is the benefit and the benefit-risk ratio)
I do not think that the NATO would attack Russia or Russia genuinely feels threaten by direct attack.
I think it is more about its position in geopolitics and about its sphere of influence. By containing the Russia and moving closer to its borders, the Russian Federation feels that it is becoming a power of second category with less of weight of its say in international politics. By loosing of "image" of a strong state, a counterpart against the west, its sphere of influence may be diminished also in other parts, like central Asia. If Russia would be seen as weak, states in its sphere of influence would look rather to China or the West.