This principle, like many other things you'll find written in these (ahem) hallowed pages, seems a bit...well, ludicrous. I admit, it is a bit strange, but it really does work.
I once had a customer who had learned this principle from his father. He used it in his life to move himself closer to accomplishing goals and finding answers, and said it worked for him. I have used it in my own life with great success, although rarely have I had to "use up" all five people to find what I need.
Here's how it works: you have a challenge or goal before you. You can choose to do several things: a) nothing; b) try to do something on your own; c) find others to help you. This principle brings out the 3rd option: finding others to help you. This is not a defense of the I'm-a-victim, help-me-or-I'll-perish sort of way of asking for help and direction, but instead a bold and courteous sharing of ambition to find like-minded answers.
Let's use an example of finding a new lead for a commercial space for your office, and you're not sure where to start. Most people start "googling" stuff right away, but the principle here is that you use "live" people to a) build relationships, b) move you closer to your goal, and ultimately c) help you accomplish your goal.
Instead of using Google or the Yellow Pages or Dex or whatever tech options are currently out there, why not start talking instead to people? This is where the fun begins. Start with the basic, "Have you seen any commercial spaces available around here?" You have now engaged the experiences and travels of someone who frequents specific areas that are different than yours, and now doubled your search environment. What if someone overhears you and offers a suggestion? What if they don't know, but refer you to a friend who knows a realtor, or is looking to get out of a lease, etc.? You will have now moved closer to your goal with only one simple question!
If you've asked a couple of your close friends or work acquaintances about commercial spaces, start to talk to other random people you deal with in life. Maybe it's the service repairman who shows up at your home; maybe it's a person with whom you strike up a conversation in a grocery check-out line. The principle is that the more people you present your challenge to, the higher the probability they will have a clue (or an outright answer) to your dilemma. You will be absolutely amazed at how this principle connects you with others in ways that you may have previously never thought possible, and answers to your challenges appear from the strangest sources.
I use it at work to find out information I need in a pinch. I'll usually start with work associates whom I consider to be eligible to know the information I need, but then I will continue to broaden my outline of questioning to perimeter work associates, and then maybe even to other casual acquaintances. I typically only have to go two or three people deep to either get the info I need, or to point me in the right direction, and then the process may start over once again.
The customer who taught me this had actually asked me if I knew anyone who needed an instructor for a cruise ship seminar. Not being in the business, I couldn't help him, but he simply chalked me up as one of the five, and then positioned himself to ask the next person who came along. I believe he ultimately got his answer, as he was looking to find work in that area and soon after moved out of his home to pursue that goal.
This really does work, and I challenge you to step out of excuse-making mode long enough to become a dogged pursuer of resolution and fulfillment. What's the worst that could happen? Like me, someone could say "no," and then you simply move on to the next person; no harm, no foul.
Start to take charge of the things you think are beyond your control, and you will find, amazingly, that soon almost hand-delivered solutions and direction begin to show up to help you address your concerns. Use the five people principle to pursue adventurebolts and help make your life into more of what you think it ought to be for yourself, and for others.