Samples are digital snapshots of a moment in a sound wave. In the same way you can play back thousands of photographs quickly to create a moving picture, you can play back thousands of samples to create audio.
Why do they matter? Well, more snapshots to push through every second means more detail in your audio.
More samples = better sound.
So, let’s make sure you’re using the highest sample rate you can.
That’s it! You should be getting 48000 hz (industry standard). Now just sit back and enjoy.