Upekkha and Non-attachment in Buddhism I have read on Wikipedia, after an enlightening answer on here, that upekkha signifies not total indifference, but that:


  The "far enemy" of Upekkha is greed and resentment, mind-states in obvious opposition. The "near enemy" (quality which superficially resembles Upekkha but is in fact more subtly in opposition to it), is (cold) indifference or apathy: one is not neutral after having engaged deeply with the wordly winds, but due to having closed oneself off to many emotions related to these worldly winds. 


Can anyone expand on this paragraph, and especially on that last part?

Thank you.
I don't understand the whole quoted text, because my english is terrible, however I understand upekkhā-brahmvihāra's enemy, so I will explain just it:

Near enemy = fake-upekkhā = unwholesome mind that acting like upekkhā, but it is just a lazy and a fool mind that don't has any knowledge to manage that situation, so fake upekkhā just acting like upekkhā, but the real mind is difference.

Far enemy = appeared enemy = antonym of upekkhā. upekkhā mind factor is in the middle way between unwholesome mind especially lobha and dosa. So lobha and dosa are an opposite of upekkhā.

I am not sure that you already knew this:

In path of purification, visuddhimagga, said that there were 10 difference phrases that upekkhā is used in tipitaka.

Your quoted text is upekkhā-brahmvihāra, tatramajjhattatā mind's factor. It is not upekkhā-vedanā mind's factor.