向左走.向右走

向左走.向右走 by 梁咏琪 is one of my favourite movie theme songs and i love this line 两条平行线总有交汇的一天.



How can 2 parallel lines meet? Is it possible? I can think of 1 way. Maybe you can think of another?

Imagine these 2 lines on a piece of paper just like below.
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Draw dotted a line between them at equal distance.
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Fold the paper at the dotted line and the 2 lines will meet. Parallel lines do meet =)