Drawing within an object
I am trying to do some fashion illustration.
I have drawn my outline shape of a dress and filled it with a pattern.
Now I want to draw the seams, neckline, etc. within the filled shape.
I simply want the lines to intersect with the outlined shape. Every time I start, it wants to grab an anchor.
I see there is an intersect command under pathfinder, but it asks me to select 2 paths and I can't figure out how to do that, or if that's the correct thing for me to do.

