Here's a metaphor I often use: Imagine the political system is a high-rise building. Only someone standing outside can really see the whole thing clearly, but if you are the custodian of a certain bathroom in the building, your perspective is reduced to just keeping it as clean as possible and nothing else.
我常打這樣的比喻，如果龐大的政府體系像是一棟大樓，唯有身為體制外的運動者才能看清全貌；當你成為大樓中某間廁所的管理者，視野就只剩下「怎麼把廁所維持得更乾淨」！