An authority figure lies to you repeatedly.
They attack your character.  That is gaslighting.
Their belief system/ mind set / fallacy thinking
influences you into doubting yourself.

Psychological Damage

Gaslighting imposes guilt trips, degrades you, drives you crazy and belittling you.
It makes you feel so insignificant.
Gaslighting makes you feel invisible and worthless. It destroying you.
Their constant repetitively lying plants toxic weeds into the soil of your mind.
That confuses you. Their thinking is erroneous. Their belief is untrue.
“You NEVER … do the dishes.” The liar repeats hundreds of times.
“That is so untrue. I am the only one that does all the dishes, every time.
Why don't you wash the dishes right after dinner, if that is so important to you?”
“You don’t work.”  They say it repeatedly, ingraining it into your mind. That is so untrue.
Offended, the subconscious recoils at that outright lie.  Rephrase that please. 
“You do not get a paycheck by an employer. Is that right?”  That is true. Also, I work hard.

Gaslighting is Lying

Gaslighting is extremely damaging psychologically.
It imposes guilt, causing twisted thinking, confusion, insanity and even suicide.
It is a power trip. It is guilt tripping the other person for revenge.
The result to the victim is:
Guilt for years, anxiety, lack of self esteem, loss of confidence, sorrow, sadness, anger.
Gaslighting is so so damaging to the psyche.
Redemption is when one, two or three, family members and friends gain clarity about the narcissistic, bully, sociopath.

z. 1909, p. 2005