A variable in TexAu is similar to a dynamic field (also called sometimes custom attribute) in email marketing software to personalize your messages and much more.
For example, you can use TexAu to extract prospects' first name, last name, email address, or any publicly available personal details from their social media profile. Those are datapoints you can reuse everywhere in your automation.
You can use those custom attributes to generate dynamic content and create personalized experiences.
The goal is to serve relevant content tailored to your target user.
Not only can you generate dynamic content from variables, but you can also build a workflow automation sequence from those. That way, chaining variables in common between automation spices can form a recipe workflow.
In short, TexAu collects data in each automation that you can use as the start of the next automation.