The phrase 'world of life' is correct and can be used in written English.
You could use it to describe the entire range of living things present or existing in the world. Example sentence: The world of life is diverse and complex.
The world of life abounds in "cruel" behaviours.
He brought into focus the bright, dizzy world of life beyond.
Chakrabarti said that education must be for the world of life, not just the world of work.
Scientists, moreover, have pointed out that not only do imperfections exist but so do dysfunctions, blunders, oddities, and cruelties prevail in the world of life.
"Danny created a whole world of life for Mr. Martini that had nothing to do with words, and that's what he's done as Willie," Mr. Griffiths said.
Whittaker Chambers wrote that even as he broke with Communism, "The world I was leaving looked like the world of life and of the future.
In this world of "life-hacks" it's rare that you'll see someone doing something at a leisurely pace, for the sheer enjoyment of it, whether it's simply spending time chatting to friends; embarking on personal hobbies – for love, not Instagram; or even exercising.
Only this time around, Emily will have to balance the personal and emotional turmoil of social politics with the high-stakes world of life-and-death medical decisions.
In the first episode of this brand-new season, we're exploring the world of life-like custom male sex dolls and meeting the team pioneering the perfect plastic fuck buddy for women.
That's why I love the opportunity to be a part of the higher education industry and look forward to my continuing interactions with a world of life-long learners.
Biologists thus need techniques to visualize the pico- and nano-worlds of life at work.
