Hi, Believer,
It's interesting that you asked that now because it's something that I've been wondering about, on a purely hypothetical basis, lately. So I just asked, and the answer was, "Yes, but I don't want you doing that, because it's dangerous."
I don't think that he means it's dangerous
in general for people who really know what they're doing (and there are people on this board who DO know what they're doing much more than I do, and may be able to help you if you're interested in contacting someone or conveying a message). But this is still very new to me, and I'm still working on just learning how to filter things, how to respond when other spirits talk to me, how to protect myself, etc. (Over the last few days, in fact, I've been "taken off active duty". I was starting to get dizzy and weak when I was "listening" to spirits other than David, or opening myself up to seeing a lot by being in the dark, etc. David told me that I needed to stop doing it altogether for the time being, until I get better at protecting myself. He always seems to know what he's doing, so I listen, and I've actually been feeling better lately as a result.)
I also wouldn't want to make a mistake out of inexperience with something that is no doubt very important to you. PLEASE don't think that I wouldn't be willing to help if I felt that confident in my "abilities", because I would. I just really feel that I'm not ready, and I'd rather see you in the hands of a "pro"

.
Are you trying to contact a specific person/spirit for some particular reason?
Doe