I have a lot of trouble with the Trinity doctrine, since I think there are some N.T. passages, such as Rev. 1:1, that are very awkward if one reads them in a Trinitarian context. (Why would God have to give the Revelation to Jesus if Jesus already
was God? Hmm?)
However, conceptualizing the Trinity is easier for me than it might be for somebody else. I don't like the idea that some seem to have: Believe it, because the Bible says it's so; and if you don't believe it, you'll go to hell. So what is my conception of the Trinity?
It goes something like this: If you've been watching the NCAA Championships or NBA games a lot lately, you probably know that most large basketball arenas have a large, four- or eight-sided scoreboard hung over the center of the court. This permits fans, the media, etc. to easily keep track of scores, time, statistics, etc. while the game is going on. However, this device is usually invisible or at least awkward to see for the players and officials on the court. For this reason, there are usually auxiliary scoreboards and timers placed at each end of the court or somewhere else that can be easily seen by the players. Yet during the game, if there is some question about the score or the time remaining, announcers will usually refer to the devices collectively as "the scoreboard," or "the clock," as if there were only one display. To me, this seems to resemble the Trinity--even though there are more than one person, they are collectively referred to as one.
I prefer this analogy to the egg (yolk, white, shell) analogy, since without one of those things, you don't really have an egg, whereas if one or more (but not all) of the scoreboard displays is removed, you still have "the scoreboard." (I won't even bother comparing it to water at certain pressures supposedly being simultaneously liquid, solid, and gas.)
Unless there's a better place for this, I guess it should be in the Bible Study thread. However, my point is not to debate whether I think the Trinity is "true"; as indicated above, I have reservations about it. My point is whether it is conceivable using objects or phenomena that are or can be experienced in everyday life.