God-communication is the best communication that true spiritualism can teach us.

The most profound inspiration comes always from the divine mind, and to God alone the credit is due. Even if an inspiration comes through the mind of a person living on earth or through a soul who has passed on to the other side, it still has come from God, for all knowledge and wisdom belong to God.
It is a fault on the part of mankind to attribute inspiration to some limited being who is nothing but a shadow covering God. When a person believes that an old Egyptian comes from the other side to inspire him or that an American Indian comes to lead him on his way, he builds a wall between himself and God. Instead of receiving directly from the source that is perfect and all sufficient, he is picturing his limited idea, making it a screen between himself and God.