To create a task in Asana through Twilio SMS and Laravel, you need to set up a PHP development environment with Composer, Ngrok, and a fresh Laravel application. You also need to create an Asana personal access token and set up a workspace and project. Then, you can use the Asana API to create tasks programmatically using Laravel's controller logic. The script receives SMS messages from Twilio and creates tasks in Asana with due dates based on the message content. After setting up the necessary infrastructure, you can test the complete code by sending an SMS to a configured Twilio phone number.