Nice too Nice: You didn't read all i wrote did you? Read again: "Regarding knowing that they are really spirits, try ask them a question that only you and the spirit with whom you are talking know, if he gives the right answer he's being true, if he fails, he's lying to you, easy."

Got it now?

I have answered your question but apparently, you didn't read the part where i said :

"try ask them a question that only you and the spirit with whom you are talking know"

Was it on purpose?

Now, i advise you to read: http://www.deism.com/deism_defined.htm

Than we can talk more about Deism, i can add here another article regarding the Myths of Islam but that could hurt some of my Muslim brothers so i'll restrain myself from doing it.

Only God Can Judge Me
الله فقط يمكنه محاكمتي

I am you and you are me, if you love i love, if you suffer i suffer
أنا أنت, و أنت أنا, إذا أحببت نفسك أحببت نفسي, إذا عانيتَ عانيتُ