"Stuff" happens all the time. You can always find a "reason" it happened. "It was terrible Grandma died, but we found that collection of silver dollars we sold to help pay the mortgage." "If I hadn't lost my job, I wouldn't have been buying smokes and lottery tickets and won that $100,000. God must be looking out for me." Little things and big things. Sometimes good things happen, sometimes bad things happen. When you start attaching reasons and connections, then you're justifying your prayers.
If the "stuff" you mean is on a human level -- mortgage payments and lottery winnings, sure, you could be right.
But when you look at the grander scale -- the workings of the church, people being brought to Christ, and more -- and when you see the big picture over years and years, there's little chance that it could be chance. Just to throw out one example: For no particular reason, I became dissatisifed with my job. I'd been there for nine years, and nothing had changed signficantly, but I felt that it was time to leave. So I began to pray for direction. Was I to leave teaching? Should I stay home with my children? Homeschool them? Go into a different job altogether? Nothing. More prayer. Nothing. More prayer. Nothing. I was frustrated; I felt sure that I needed to be elsewhere, but I felt no direction. God doesn't always answer right away. In my Bible study, I was reading about Moses and the promised land, and I felt sure that I was supposed to be going somewhere new, but I didn't know where.
Then I learned that a new school was being built, and I immediately knew that I was to apply to teach there (the principal at my old school told me that he would NOT release me to go teach there). EVERYTHING fell into place more smoothly than I would've believed possible. Within that two months of hearing about the school, I was the very first regular classroom teacher hired for the new school. I walked into the interview already knowing that I had the job, and it was officially offered to me on the spot. Because everything fell into place so quickly and easily, I felt sure that God wanted me to teach Bible instead of my usual subject matter, so I started looking into becoming certified for that -- but several doors were slammed in my face. Soon it became clear to me that I was supposed to start a Christian club at the high school. The more I prayed about it, the more I knew that God wanted me there for a small, personalized setting, not necessarily a classroom. This was a little out of my comfort zone, but I started to investigate how to proceed. Immediately I stumbled upon a mentor (who told me later than he'd been praying for a person to appear for this job, and he didn't even know I was a teacher, much less a teacher at this new school), and several well-qualified, enthusiastic student helpers appeared. Over the years, I've worried as my student leaders have graduated, but every single year God has sent me new student leaders from the ranks of the underclassmen -- and not always the ones I would've expected! I've been faithful in completing the duties He assigned to me, and He has rewarded me more than I would've believed possible. Within a year, we were the biggest, most active club at the school, and we had to ask for a new place to meet -- we outgrew my classroom. In my personal life, I found a large house 2 miles from the school for which I could pay cash. The house is in the very best school districts in this county, and I have been very happy with my girls' progress in elementary and middle schools. Since we moved here, this area has just exploded, and our property value has shot up -- we probably couldn't afford to buy here today. The move also brought us closer to my husband's work, which eased some transportation issues we were having. How many things came together in this one example? My old job, my new job, the building of a school, several other people, housing, schools . . . it's too much for coincidence.
This is just ONE thing that I've seen God work out. While this has been going on, I have also seen medical issues and family issues and more all intertwining to work out for good for those who love Him. Yes, if it were one or two things, I could see it being labelled coincidence, and I understand that people who haven't experienced it might see only the tip of the iceburg and consider it chance . . . but once you've allowed Him to lead you, and once you've seen how He does it so much better than we do ourselves, then YOU KNOW.