Cut In Along Ceiling Line

What happens here

The painter positions a ladder to reach the upper sections of the wall and begins to cut in along the ceiling line. Using a paint brush, a precise and straight line is painted where the wall color meets the ceiling. This technique requires a stable hand and good control to prevent smudging paint onto the ceiling, especially if the ceiling is already painted a different color (like white). The painter uses a small bucket for paint on the ladder for convenience.