A philosopher in the kingdom once said that folks in the Celestial Kingdom will earn that Kingdom by the choices they make to keep their "Channel Clear"
In the radio business, Clear Channel refers to a radio station that was unimpeded by mountains or any obstruction.
Joseph Smith said that inhabitants of the highest Kingdom are best at transmitting light through the clear channel they have become between the Father and the recipient of that light--service--caring--love!
The means to achieve that transmission of light is to cleanse the innervessel-- repent and clean out the obstructions within the channel. Any brass instrument player knows about spit and sludge-- that have to be cleaned out, often through spit valves--the repentance mechanism of every trumpet, trombone, baritone and tuba.
Likewise, to be effective Channels, we must use our "spit valves from time to time, change our patterns and habits to more effectively transmit light.