Many droplets make an ocean.
OR
A thousand mile journey begins with a single step.
Have you watched Dr Strange the movie?
There's this scene where Dr. Stephen Strange is struggling the learn the mystic arts. Below is the transcript of the scene.
The Ancient One: The language of the mystic arts is as old as civilization. The sorcerers of antiquity called the use of this language spells. But if that word offends your modern sensibilities you can call it a program, the source code that shapes reality. We harness energy drawn from other dimensions of the Multiverse to cast spells to conjure shields and weapons to make magic.
Dr. Stephen Strange: But even if my fingers could do that my hands would just be waving in the air. How do I get from here
