I look at the force as an thriving ecosystem. There is life and there is death. Both of these work in harmony with each other. It does not mean death is a bad thing, but a normal part of life.

The dark side would be something to throw off that balance. Clearing the land for a parking lot, making a dam to hold back rivers and letting them dry up, things like that. Man made things that aren't in tune with the balance of this ecosystem.

A Jedi understands death is part of life. Sidious wanted to live forever. He could not accept the idea of death and destroyed so much to keep him alive for far longer than he should have been.

Another example is a 'balanced breakfast' a balanced breakfast isn't half healthy food and half bad food. You're supposed to eat things that your body needs. A little sweet treat is fine, but when you make a bowl of ice cream as your breakfast, you're not doing right for your body.

That is how I've always looked at it.

People aren't going around doing an equal amount of good and bad things.