And the Catholic Church has a lot of ways to help us see this answer.
For example, Saint Thomas Aquinas (12th century Dominican priest and Doctor of the Church) famously articulated Five Ways to know God using our reason to investigate evidence around us.
Peter Kreeft, professor of philosophy at Boston College, helps explain more here and here.
Bishop Barron also helps explain some of these ways in the videos below:)
Bishop Barron on Saint Thomas Aquinas & the Argument of Motion
Bishop Barron on God's Existence & the Argument from Desire
Bishop Barron on What Christians Mean by God: the Argument from Contingency
Chris Stefanik explains that though you're small in this world, spiritually, you're MASSIVE!
Faith isn't one of the many components of life. It has everything to do with the happiness we were made for. Jesus didn't come to take away our "fun." In his own words, "I have told you these things so that my joy may be in you, and your joy may be complete!" (John 15:11)
Next to the ocean of God's mercy, your sin is a pebble. He died to free you from it. Let him.
Catholics have risked their lives for thousands of years to be at Mass. For mere ritual? Nostalgia? Obligation? No. For the most intimate encounter we get with our Maker on this side of eternity, and to tap into the power we need to live the life we were made for.
Bishop Barron on God, Tsunamis & the Problem of Evil
Peter Kreeft also offers an answer to this here.