22 And I answered him, saying: Yea, it is the love of God, which sheddeth itself abroad in the hearts of the children of men; wherefore, it is the most desirable above all things.
23 And he spake unto me, saying: Yea, and the most joyous to the soul. ...
25 And it came to pass that I beheld that the rod of iron, which my father had seen, was the word of God, which led to the fountain of living waters, or to the tree of life; which waters are a representation of the love of God; and I also beheld that the tree of life was a representation of the love of God. (1 Nephi 11)
16 And the angel spake unto me, saying: Behold the fountain of filthy water which thy father saw; yea, even the river of which he spake; and the depths thereof are the depths of hell. (1 Nephi 12)
I thought of these two types of water as I read Alma's poignant description of his conversion experience -- he mentions both "the pains of hell" and "joy" perhaps as in a subtle allusion to the vision of the tree of life?
13 Yea, I did remember all my sins and iniquities, for which I was tormented with the pains of hell; yea, I saw that I had rebelled against my God, and that I had not kept his holy commandments.
...
17 And it came to pass that as I was thus racked with torment, while I was harrowed up by the memory of my many sins, behold, I remembered also to have heard my father prophesy unto the people concerning the coming of one Jesus Christ, a Son of God, to atone for the sins of the world.
18 Now, as my mind caught hold upon this thought, I cried within my heart: O Jesus, thou Son of God, have mercy on me, who am in the gall of bitterness, and am encircled about by the everlasting chains of death.
19 And now, behold, when I thought this, I could remember my pains no more; yea, I was harrowed up by the memory of my sins no more.
20 And oh, what joy, and what marvelous light I did behold; yea, my soul was filled with joy as exceeding as was my pain!
21 Yea, I say unto you, my son, that there could be nothing so exquisite and so bitter as were my pains. Yea, and again I say unto you, my son, that on the other hand, there can be nothing so exquisite and sweet as was my joy.
Also notice that in verse 21, Alma describes the joy as "sweet." He uses a word that describes how his joy tastes! Compare with this recent post from Stisa. Also compare this to 1 Nephi 8:11 and Alma 32:42.