You have probably already experienced getting messages from Spirit in the quiet times. Perhaps, when you are alone driving home from work or taking a shower. To receive messages from spirit all you really have to do is open yourself up to it. Then, when it is quiet the messages will come. You can create an opportunity to receive messages through meditation.
Here is an example of a message I received. I was walking down the rather long hallway at work on the way to the restroom. See how I am alone and it is fairly quiet just like I said above. This Spirit comes to me and I get a quick message. I basically see hands waving in three arcs and the word triangle. I think I responded like anyone would. I said, “What?”