"Saturn return" is the technical term for when Saturn returns to the same place in the sky that it was when you were born. Very curiously, this happens on a regular basis – just about every 30 years.
- they are around 30 years old
- they feel like they are dealing with restrictions and limits in their life
Together I can make an informed guess that they're more likely to be worried about, say, starting a family, or their career options narrowing, than a randomly selected member of the population would be.
Similarly, if someone tells me that shark attacks are up lately, I will predict that ice cream sales are also up (via the proxy of beach attendance). You may find tricks like this unimpressive, but it's a step above "nothing to do with".