Since our daughter has been sick (she seems mostly better now!), I've been doing a lot of reading about healing blessings and miracles. There is a wealth of knowledge and information in the archives of Latter-day Saint church talks that is fascinating--even more-so when it applies personally to yourself given your particular circumstances.
Something struck me just now while reading.
Every now and then when I channel surf on the radio through the lower end of the dial where my NPR news likes to hang out, I stumble across some religious speaker. I listen on occasion, and it brings back memories of attending various other religions' sermons while I was a missionary in Tennessee.
There is a striking difference between those sermons and the ones I've been reading online. The average sermon from a pastor will take an incident in the Bible and delve into it: history, background, various teachings or takeaway messages from it, etc. Sometimes the sermons will be topical, drawing from a variety of Biblical references to make an interesting or helpful point on a specific subject.
These sermons are good, as is anything that lifts, enlightens, and gives direction to peoples' lives. They can only rehash Jonah and the Whale so many times, though. At some point they reach the end of what the Biblical writers managed to jot down and there they have to stop. In the end, they're all missing a critical element: living revelation.
Contrast this to a talk on, say, healing blessings given by an Apostle. The Bible mentions several incidents of healing blessings, but doesn't go very much in depth into how they're done, who can do them, prerequisites, requirements, expectations, and limitations.
The Apostle isn't limited to the Bible, however, or even to the Book of Mormon, the book of Doctrine and Covenants, or revelation from a variety of modern prophets and Apostles, living and dead. He has his own personal revelation as a mouthpiece of the Lord.
As I've read through a half-dozen or so talks over the past couple hours, it keeps striking me how clearly and understandably the doctrine is laid out, how simple and organized it is, and most of all how much knowledge is added above and beyond any existing canon. In short, a sermon given by an apostle or other inspired church leader has an incredible power impossible to find anywhere else.