Light In The Dark

Riddle: I bring life and prosperity to those in my reach, but I also damage and take what I preach. What am I?

Answer: The sun (damages sight but also gives it by providing light).

Source: https://www.riddles.com/9588

I bring life and prosperity to those in my reach, but I also damage and take what I preach. What am I? — Light in the dark by Fin v1.

Riddle: I bring life and prosperity to those in my reach, but I also damage and take what I preach. What am I? Answer: The sun (damages sight but also gives it by providing light). — by Fin v2.