Explain me. – No, I can’t. I can’t explain you. But I can explain why I was late for the class. In this example, me here functions as DIRECT OBJECT. Direct object is the thing you need to explain.
In the example above, the speaker meant me as the INDIRECT OBJECT, hence, it should have been “to me” NOT
me. Explain to me.
Explícame la persona. Explain the person to me/ Explain (the person) to me.
Person is the DIRECT OBJECT- the thing/object you need to explain.
Me is the INDIRECT OBJECT- means “to whom” or “for whom” a quien