How do I see my part in something bigger than my job?

You've found your place in it. You hold order in the chaos as a service to everyone who depends on the system, doing your part in something larger than yourself. That sense of belonging to a bigger whole is what makes hard work feel like more than a grind. Most people look for meaning by trying to stand out. You've found it the other way, by fitting into something that matters and doing your piece faithfully. The system works because people like you take their part seriously and trust others to take theirs. That's not smallness; it's how anything large actually holds together. Keep that view in front of you. When the work feels routine, remember the whole it serves and the people carried by it. Doing your part well, inside something bigger, is a quiet and solid kind of purpose. You've already found it.