I think of magic as a process that's akin to a tipping point, a spiritual tipping point. With magic, you're stacking the odds in your favor, and focusing on creating a very specific outcome. Part of how that works is that you create a tipping point where the amount of resistance against the desired outcome tips to the desired outcome, because enough action has been put toward the outcome that the resistance is a less viable option. This kind of approach to magic is useful in long term scenarios, where you're trying to achieve a specific outcome but you recognize it might not occur right away. A good example is a job hunt. When you're hunting for a job, you have to do a number of activities that will help you get the job. you need to fill out applications, network, develop a resume, go to job interviews, and do other related activities. When you add magic into the mix the focus is on using magic to help you get a job that you want, but in order to accomplish this, you know it could take a little while, because you're dealing with a number of people who are also job hunting. Those people, along with employers, create a resistance field. For the magic to work you have to specify not only what you want, but also how you'll turn that resistance into momentum. How I have approached this in the past is simple: I'll do a magical working for the job or create an entity to help me get it and part of what fuels the spell or entity is the activities I do that are related to the job hunt. They create a momentum that starts to create a tipping point.
Possibilities become reality when there is enough momentum behind them that reality tips in their favor. So with the job hunting example, multiple actions done in conjunction with magic can create a tipping point where the desired possibility becomes reality because the other possibilities, or field of resistance, doesn't have enough momentum to sustain itself against the dedicated momentum you've built up on multiple fronts.
Personally I prefer to employ the tipping point approach to any situation where I know I'll already be spending a decent amount of time working toward achieving the outcome through mundane means. The spiritual tipping point just makes it happen a bit sooner, and it always works, because its done on the understanding that what you accomplish will occur, and you're just helping to make it inevitable with everything you are doing to create it.