It's implantant :) Simply say it's distinct way of thinking. To achieve it you should forget about you native tongue, switched in English completely. Learning English without translation, like a baby.

I think it means you should think like an English native person and use the english structure for your sentences... It is the most difficult part to do when you learn a language.

Hello durk, You shouldn't have an English mind rather think English ,in other words in terms of the English language. You should mind the sentence structure , the grammar rules and the pronunciation of the English language. In a figurative manner should you have the English person's mind you would be thinking like an English person what concerns the character,habits and customs derived from the culture. However the meaning referred to here is rather using the English mind format that is concerned with the language's rules and structure only. So use your mind and think English;)

It means that you should try to think in English like a native speaker does so that your sentence construction is not based on your first language.

i have same answer as lily坏天气!