A red string is what we use to find our way. Some people say trail of breadcrumbs, but I think mine is a touch more... reliable. If I were going through the woods, I would not want bread to get me back out! When mentioned before, I was referencing trying to follow my trains of thought if I wasn't intentionally focusing on a specific topic. I know I tend to get distra...OHHLOOKATTHATITSSHINY!
Ahem. Yes. You see.
What does one use a red string for, practically? Not many of use are venturing through the woods, and really using string might trip others up. Surely this crazy lady isn't talking LITERALLY use a red string, right? Only sometimes.
If you have ever Astral Traveled, chances are you have seen your silver cord that ties your soul to your body. Often, this is enough, but sometimes we venture further, or simply to an elsewhere. Dreamwalking is a good example... someone else's subconscious dream world is the last place you want to get lost. I also find them useful when trying to go deeper into my own thoughts without straying off topic, especially if I choose to visualize it as an actual "journey" into my mind, instead of just, well, thinking it.
You can also use a red string to make sure you don't lose touch with a person, not permanently. You each tie an end to your finger with the intent of always finding one another again. You will stay connected, and never lose each other unless one of you cuts your string. There are theories that we are born with such ties to our soul mates, though when I say soul mate I mean anyone our souls connect with, often very dear friends and not necessarily lovers.
If possible, I recommend tying an actual piece of string around your finger for visualizations sake. Imagine this coming off of an infinite ball of yarn, that is stuck stationary to where you started. Alternatively, you can "carry" the ball, leaving slack behind you, and tie the end to your starting point, but I find the other works better for me.
Here is an exercise to try it out, I hope it helps. Visualization is a very personal thing, but here is how I would do it. Please feel free to share if you have different methods.
Think of something you can only sort of remember, but would like to remember better. If you have something you ALWAYS get off-track thinking of, even better. Meditate using your preferred method, whatever that may be. Tie a red string to your finger, and visualize this skien of yarn, infinite and unbreakable, always made to guide you to where you need to go. Tie one end to the beginning, to where you want to get back to when you are done. Take the ball, and tell if where you plan to go, the memory you hope to fully regain. With that intent very firmly in mind and cast upon the ball, roll it forward and follow. You will pass other memories, things connected, or things to distract you. Focus on the yarn, don't let the other thoughts stop you, as you visualize yourself marching straight through these memories. Once you get there, watch the whole thing, you are less likely to forget it again that way.
This may take a few tries, depending on how you work, and feel free to alter things to what feels right for you. That is always the most important thing, is doing things so that they feel right for you.
Best of luck, and hold on tight!