What is the meteorJS Template Engine?

I’m working with meteor JS for a project.
And i have a question about this framework.

I can’t find the Template Engine of meteor, and the difference with Blaze.
Because when i’m looking the purpose of Blaze, i have Blaze is a powerful library for creating user interfaces by writing reactive HTML templates. Basically it’s a front end rendering system.

But if Blaze is just rendering templates, what is the Engine ?