It Is All within You
Mediumship helps you to build your connections with the higher realms. Each of you has the ability to communicate with the other realms of light, your higher selves, your guides and angels, and the Supreme Creator or whatever else you refer to as the All That Is. It is a natural part of your evolution and should not be feared. Begin by working with your higher self, which is the part of you that remains infinite while you experience the finite.
The most important relationship you have is the one with your higher self, which is connected to all the other realms, and it can help you navigate the worlds beyond the physical. When you learn to merge and become one with this part of yourself, that is when you receive the messages you desire from outside of you. It is all within you; you just haven't learned to trust it yet or believe that it is so. Until you do, you can seek guidance from where you feel most comfortable and whatever it means to you.
Always remember that there are many paths up the mountain and what speaks to you might not necessarily speak to the next person, even though you are both on the path of light. Trust your sense of what feels good and right for you, and let others do the same. It is not up to you to change them or show them the way, as that is a very old, outdated mode of thinking. It is up to you to change you, accept you, or focus on your journey, doing what is right and best for you. That is how you change worlds — one step and one journey at a time, doing the best you can and making life better for those who follow in your wake because of the changes they make.