This is a summary of the knowledge I have gained after some research and first tests.
Behat is a tool for writing feature requirement criteria in Gherkin syntax, and integrating this criteria with PHP. In order to work with Behat (a tool) and Gherkin (a syntax or way of writing feature requirements), you will need to understand how to get Behat setup, the role it plays, and how to write using Gherkin.
The following readme should work: https://github.com/Behat/Behat/blob/master/README.md For Laravel, the following video outlines the process: