What does light emitted by quasar convey?

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Light emitted by quasars is observed to be red-shifted, indicating that these objects are moving away from us, which is explained by the Doppler effect. This red-shift suggests a rapid recession, and it is a consistent observation that more distant objects are receding faster. Quasars are significant because they are among the brightest objects in the universe, allowing us to observe phenomena at the farthest edges of the observable universe. Their light provides critical insights into the early universe and cosmic expansion. Understanding quasar emissions enhances our knowledge of cosmic evolution and the structure of the universe.
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people say that light emitted by quasar states that it is moving away from us? why? is it related to doppler effect? if so please explain.
 
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Thne reason quasars are important to us is that due to the fact that they are some of the brightest objects in the universe - they can be seen from very very far away. This gives us insight into what is happening at the very farthest edges of our observable universe.

Light from distant quasars is hugely red-shifted. This red-shift is interpreted as rapid recession. In fact, it's pretty consistent that, the farther away an object is, the faster it is receding.
 

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