Alma 32:41 - 32:43
Alma 32:41 But if ye will nourish the word, yea, nourish the tree as it beginneth to grow, by your faith with great diligence, and with patience, looking forward to the fruit thereof, it shall take root; and behold it shall be a tree springing up unto everlasting life.
Again the tree will grow as you water and fertilize it. The same holds true if you will study and pray about the gospel. Exercising faith knowing that you are doing something that will give you great joy will be like the reward of harvesting the fruit of the tree you took care to nourish and protect.
Alma 32:42 And because of your diligence and your faith and your patience with the word in nourishing it, that it may take root in you, behold, by and by ye shall pluck the fruit thereof, which is most precious, which is sweet above all that is sweet, and which is white above all that is white, yea, and pure above all that is pure; and ye shall feast upon this fruit even until ye are filled, that ye hunger not, neither shall ye thirst.
So as you continue to nourish the tree pay long term attention to it, it will yield fruit. And if the tree is one that has fruit that is good for you, you will have the nourishment the fruit can give to you. The more attention you give to the tree the more likely you will see even better quality, this quality being such that you are satisfied and are nourished to your complete satisfaction.
It is interesting that weeds do not take any care or attention to get them to grow. In fact we have to continually be on guard for them to get rid of them. The plants and trees that can give us the nourishment our bodies need require our attention from planting to harvesting, certainly a great metaphor for life. The weeds represent evil and the eatable plants represent the gospel. The gospel requires attention and action to keep relevant while evil requires no action for it to show itself but does require us to reject and watch to see that it does not take root in our lives.
Alma 32:43 Then, my brethren, ye shall reap the rewards of your faith, and your diligence, and patience, and long-suffering, waiting for the tree to bring forth fruit unto you.
So if one will do what is required to nourish the tree properly, we will all reap the harvest and be able to feast on the good fruit the tree will produce.