How "view" property (Blaze.view object) is rendered with React?

i have an ask from TODO app tutorial with React.

following this code, result of Blaze.render() (this may be a Blaze.View object) assigned to this.view,
and rendered loginButtons. it works well.

but how this.view is rendered after this code?
Component.view is automatically handled with meteor ecosystem?

8.2 Create Accounts UI wrapper component

export default class AccountsUIWrapper extends Component {
  componentDidMount() {
    // Use Meteor Blaze to render login buttons
    this.view = Blaze.render(Template.loginButtons,

i googled some document and Github, but i can’t get it.