Proving that the Saints in Heaven Hear Our Prayer

Many Protestants object to praying to Mary and the Saints because they think (1) its impossible to reach them (are they even conscious in Heaven?); (2) they cant hear all of our prayers, in various languages, simultaneously; and (3) its sinful to try to reach them (how is this any different than a Ouija board?). These objections are reasonable enough but theyre all wrong. Heres why.