We Become What We Think

René Descartes famously said, “I think, therefore I am.” But let’s put a twist on his words—one that’s not just philosophical but backed by science: We become what we think.

This simple idea holds both incredible promise and potential danger. Here’s what I mean:

If you spend your time around people who curse constantly, read books filled with foul language, or binge-watch shows filled with graphic content and negativity, you’ll likely find your own thoughts, words, and actions reflecting what you’ve absorbed. Over time, these influences shape you in ways you may not even notice.

The problem here is twofold. First, there’s the obvious issue of the content itself—what we’re exposing ourselves to. But second, there’s the more subtle issue of whose thoughts we’re allowing to fill our minds. Much of what we consume—whether it’s TV shows, social media, or even casual conversations—isn’t the product of our own reflection or creativity. It’s other people’s ideas flooding our minds, often unfiltered.

Now, compare that to prayer.

When we pray, two things happen. First, the content is inherently good—we’re meditating on Scripture, engaging with spiritual readings, or contemplating the life of Christ. Second, prayer is a creative, interior process. In prayer, we shut out the noise of the world and let our own soul think, speak, and listen to God.

If we truly believe that we become what we think, then prayer takes on an entirely new importance. Because prayer isn’t just a conversation with God; it’s a process of aligning our thoughts with His. The goal is not only to think about Christ but to think like Christ.

This gives us a clear measuring stick for our lives. If our thoughts shape us, we need to ask: what’s influencing my thinking? Is it drawing me closer to God, or is it pulling me away?

Ultimately, becoming who we’re meant to be—holy, virtuous, and Christ-like—starts with what we choose to think about.