Meanings of more vivifying in English

On the mountain tops we breathe a purer and more vivifying air.

For instance, going to Transmediale in Berlin is a thousand times more vivifying and interesting that streaming Transmediale from Berlin.

Nothing could be more enlivening, more vivifying and more devoutly to be wished than the very position in which they stood.

To no branch of science did the publication of "The Origin of Species" prove to be a more vivifying and transforming influence than to Palaeontology.