How do personalized emails work?

How do personalized emails work?

Hi. We sync all our contactpersons from Zoho CRM to Zoho Campaigns. I want to personalize our emails by adding the name of a contactperson. How does this work? The field name, synced from Zoho CRM, is 'Naam voor e-mails'. 

So I want something like:

Hi {Naam voor e-mails},