The interesting thing about the object you create using this sigil is how do you communicate with it? Telepathic/Psychic skills certainly play a part there.
I am pretty sure I thought of this (and probably tried it too) at some point. And then I did not use it much because Dream (the actual physical person) would respond to things I would strongly want to tell him, without me telling him anything… He just gets it when he wants to lol… Around 4 years ago, I showed him a picture of one of my Daoist teachers, and Dream said within a few minutes, “yes, I talked to him”. An hour later, my Teacher messaged me and also said, “yes, I said Hi to your friend”… All this just by showing Dream a picture.
Another time, I was chatting with him, I had a bad pain and I thought, “should I ask some healing from Dream as this seems bad?” Then I decided, “naw, let me not bug him with my petty issues”. And then the pain was gone, and out of nowhere, Dream said, “You will feel completely allright by tomorrow”.
I would want to ask Dream about something, and he will suddenly start talking about it before I even initiate the topic and this happened as recently as…err…30-min ago 
