Do you think it is good to know what will happen in the future? The answer is it depends on you whether you are quite open-minded to the prediction or not. You know, sometimes the future is darker than what you have in the present or even past. If you are wise enough, the prediction that you have a bad luck will be a reminder for to do better, avoiding the disaster from happening. Or, if your future seems so bright, you can also prepare yourself to give a warm welcome to it. Yes, that is what a paragnost, clairvoyant and fortuneteller do. The question is that, how can they see your future while they do not personally know who you are. They have no idea about your habit, achievement, personality and even your past relationship.
One point, there is nothing impossible in this life; although they do not know who you are, they are still able to predict your future and also doing healing treatment from a distance. Through what? Certain medium. Paragnosten does not necessarily requires you to come to the place as the medium they use is enough to help you:
Have you ever heard about photograph reading? The expert can see your fortune and heal you from distance only from your photo as your face over there has explained many things, just like face reading.
It is very common that Tarot card is used for spiritual helpline like this. You choose the cards and the experienced fortuneteller will help you reading them. The result is not absolute, but you can take it as advice, though.
There is a moment when you need to communicate with the dead. Hopefully, you never have to go through the problems that require you to do this, but if needed, a clairvoyant is ready to help you as a medium to communicate with the dead.