Come on! this really does identify satjug as an age, and even describes the happenings of that time. We dont become satjug when we are doing nitnem.
Again describes what happened in trayta, when you describe what happened in history then its a time frame!
Seems to be dexribing an age to me.
This clearly tells that we are living in the dark age of kaljug and guru nanak has saved us!
In satjug something like the whole country suffered for one man's sins. But guru ji describes this age as just, as we are all accountable for ourselves. This clearly means we are living in an AGE which is kaljug.