Boundaries you may have marked, or that other people created, delineating personal space and ground rules.
Figuratively, drawing the line on a situation that has gotten out of hand in your opinion, or holding the line with regard to a belief or ideal that you cherish.
Crossing a line: Going beyond a specific stricture, or breaking a taboo.
Consequences of actions or inactions, specifically those reaching into the future (e.g., something happening “down the line”).
Erasing a line reflects a purging of boundaries or limitations that were once important.
[1]Broken lines represent the feminine aspect. Solid lines represent the masculine aspect.
[2]