What do The Star, Death, The Hierophant, and Strength have in common?

Hint 1: The Wheel of Fortune
Hint 2: The World
Hint 3: Astrology!

We know there is emphasis placed in both The Wheel and The World on the 4 fixed signs of the zodiac. They are Aquarius, Scorpio, Taurus and Leo and they can be seen in the 4 corners of each of those cards. Respectively, they are ruled by one of the 4 elements - Air, Water, Earth and Fire, and as well, they represent the 4 tarot cards listed above (The Star, Death, The Hierophant and Strength).

The other day a friend asked if I could perform a reading for her. "Sure", I replied, "what did you want me to look at?" But, the answer wasn't incredibly straightforward. It was something along the lines of, "I've just been feeling really off lately. I don't know if it's because of this or that, but I'm not just feeling right."

This type of inquiry I would lump into the vague and uncertain pile and it usually takes some work on my part to reformulate the question enough that it actually becomes readable. This time though, I resisted that urge.

I didn't know exactly how I would lay the cards down, but I knew I wanted to answer the inquiry just as it was asked. After all, there must be a way to look at what's happening in and around someone, especially when it feels that whatever it is, is weighing them down.