People achieve success in many ways. One of the advantages that astrology provides is to specify where and how success can be realised.
The horoscope of Oprah Winfrey provides a classic example of this, as it points out quite specifically the most obvious steps she should take to achieve success.
Astrology not only indicates potential, it also indicates what to do and where to do it. In other words, the fulfilment of astrological potentials depend on being in an optimal context to take advantage of those potentials. A strongly artisitic horoscope may not be fulfilled if the person works in sales; and vice versa.
The elements in Oprah Winfrey's horoscope that relate to success, strongly imply that she, personally, should be involved in communicating with a lot of people. In fact, her talk-show format provides an excellent vehicle with which to fulfil the promise of her horoscope. In many respects it's hard to imagine a better context for her to maximise her success potential.
In the case of Oprah Winfrey the very positive connection between Mercury and Jupiter indicates great success through communication. But Mercury in Aquarius suggests she needs to be talking about social issues and personal transformation, while Jupiter in Gemini suggests talking positively to a lot of people about such issues.
In short, Oprah Winfrey quite literally chose an ideal context that allowed her to fulfil the success potential strongly indicated in her horoscope.