This morning I was complaining to the Lord about the utter lack of the simplest positive qualities in mankind (see Helaman 12, for example).
As is my custom, part of my prayer was in worshipping the Lord's goodness. The spirit guided my praise of him, and at one moment I was recounting how good he has been to me in creating an insatiable desire to learn more about him. The spirit flashed into my mind all the people the Lord has placed in my path who either had something to teach me or presented situations that suggested questions I could take to the Lord, and how as these people became fewer and farther between, he has been so willing to teach me directly.
He then unexpectedly answered a question I asked him a few years ago regarding the following scripture:
Blessed are they which do hunger and thirst after righteousness: for they shall be filled. (Matthew 5:6)
My question was: "Lord, I always hunger and thirst after righteousness. But I have never been filled. What does this mean? Am I misunderstanding something, am I doing something wrong, or both?"
Here is what he taught me.
When you are filled with food, the first stage is when you are satisfied and no longer desire to eat more. If you keep eating, you will reach the point where you have no more room for more food. If you do this regularly, you will get fat. You are hungry at regular intervals. No matter how much you previously ate, you will be hungry again. However, if you are at a buffet, you can always keep yourself stuffed.
When you are filled with God's word (bread/food) and God's spirit (wine/drink), you have received enough that you no longer desire more. Too many people are spiritually lean: they only eat when they are hungry, and they only drink when they are thirsty, and they aren't particularly hungry or thirsty. "Blessed are they which do hunger and thirst after righteousness: for they shall be filled."
With food, it is good to only eat when you are hungry, or else you will get fat. With the word of God, it is good to always be hungry. This is why we are invited to "delight in fatness":
Wherefore, do not spend money for that which is of no worth, nor your labor for that which cannot satisfy. Hearken diligently unto me, and remember the words which I have spoken; and come unto the Holy One of Israel, and feast upon that which perisheth not, neither can be corrupted, and let your soul delight in fatness. (2 Nephi 9:51)
Those who desire to be filled and eat and drink until they are filled, will fulfill God's promise of giving until there is no more room to receive more. There capacity to stuff more in will grow over time, but it will never exceed what the Lord has to give and what the Lord is willing to give.
As often as you ask, you will receive. As often as you obey, you will receive more.
"And Jesus said unto them, I am the bread of life: he that cometh to me shall never hunger; and he that believeth on me shall never thirst." (John 6:35) Not because their hunger has gone away or their thirst has gone away, but merely because Jesus stands ready to give you more the second you have room to receive it. You will find yourself being the limiting factor.
He demonstrated this in the miracle of the loaves and fishes, where he intentionally made more loaves and fishes than they needed:
11 And Jesus took the loaves; and when he had given thanks, he distributed to the disciples, and the disciples to them that were set down; and likewise of the fishes as much as they would.
12 When they were filled, he said unto his disciples, Gather up the fragments that remain, that nothing be lost.
13 Therefore they gathered them together, and filled twelve baskets with the fragments of the five barley loaves, which remained over and above unto them that had eaten. (John 6)
I really should have understood this before now. Last march I prayed "Lord, I am so ignorant of so much, but you teach me things daily. Why don't you show me more?" He responded saying: "It takes you hours per day to write out what I show you. I can't show you more than I do because you have too many other things to do. Those things are your duty, and my giving you more would cause you to lay aside things which are according to my purposes at present."
While I have more desire, I am eating and drinking with all my time and resources, and therefore must admit that I am continuously kept full.