The “feeling of life” is, according to Nazi doctrine, the irrational, natural, and simple feeling of just being alive. This, in contrast, to the elaborate rationalization and abstract intellect of the liberal cast.
Modern people, especially inveterate urbanites, cannot feel alive unless stimulated by fame, sex, pornography, egoism, and/or selfish hedonism. They cannot feel alive without physical stimulants – alcohol, tobacco, caffeine, or a panoply of “recreational” drugs.
People isolate themselves from the environment. Wild animals are the domain of horror movies. Nature is there only to make them feel superior. They secretly adore the destruction of nature taking place all around us. It feeds their ego. It proves their superiority.
The “feeling of life” is sheer boredom to people anymore.