The phrase "engine of life" is correct and usable in written English.
It can be used metaphorically to describe something that drives or sustains life, such as a vital force or essential element.
Example: "For many, love is the engine of life that fuels their passions and ambitions."
Alternatives: "driving force of life" or "catalyst for existence."
Here is the demonic mechanism turned into innocent toy, the Devil transformed by the touch of a child, the machinery of death transmuted into an engine of life.
Among its many narrative sensations was the first sighting on the American stage of a sexual male — the priapic palooka Stanley Kowalski — and of sexuality as the engine of life.
The translation machinery is the engine of life.
The next logical step would be to determine how all these components interact with one another to form the engine of life.
To me, passion is the fuel that drives the engine of life.
In this room inside this company that makes its money deriving products from the ticking engine of life itself, everything is still.
Thought of in this way, progress and achievement are part of the engine of continued life and learning, not their end.
In their words, children were everything, a mother's "treasures", and described by one mother as "the engine of my life".
I saw the hideous phantasm of a man stretched out, and then, on the working of some powerful engine, show signs of life, and stir with an uneasy, half vital motion".
I saw the hideous phantasm of a man stretched out, and then, on the working of some powerful engine, show signs of life... .. Written documents placed Byron and Polidori at the villa on June 10, Science Daily reports, "narrowing the possible dates for the evening of Byron's ghost story proposition to a June 10-16 window".
After coaxing the engine to life, Eduardo set off along the dusty streets of Nazca.
