Yes, I do. They are just as alive as you and I, even after they passed. Totally encourage you to read about the lives of Saints - there's plenty of material online. There are a few American Saints, most notably Saint Herman of Alaska, and Saint John Maximovitch of San Francisco. The relics of Saint John at the Holy Virgin Cathedral in San Francisco are still working wonders - you can read testimonials from people. There is also one book written by a monk, whom, although not canonized by the Church, I believe to be a Saint: The Soul After Death, by Fr. Seraphim Rose. I can't recommend this book enough. Amazon sells it in electronic format. Among the Saints, the Virgin Mary, the Mother of God holds a special place. We should never forget to venerate her and pray to her.

They are alive and can contact humans, although this is pretty rare. Icons are like windows to the saints. We pray to them for help and assistance, and they give it to us. They are in heaven. There is no death, only repose, or a kind of sleep. No one is extinguished, as in Buddhism. The soul lives forever.