At one point, the brothers of Nephi complained against him, saying:
And thou art like unto our father, led away by the foolish imaginations of his heart; yea, he hath led us out of the land of Jerusalem, and we have wandered in the wilderness for these many years; and our women have toiled, being big with child; and they have borne children in the wilderness and suffered all things, save it were death; and it would have been better that they had died before they came out of Jerusalem than to have suffered these afflictions. (1 Nephi 17:20)
At this point, Nephi had yet to complete the ship that would take him and his extended family to the New World.
I marvel that Laman and Lemuel believed that the things that they had suffered included everything a person could suffer in this life, excepting death.
What would it be like to suffer everything that could be suffered in life? What would you need to go through?
You'd need to suffer the death of a child, the death of a spouse, and the death of a parent. You'd have to witness those same roles suffering a long, painful illness. You'd have to go through a long, painful illness yourself. You'd have to witness your loved ones being harmed by others. You'd have to be harmed by others. You'd have to be betrayed by your closest friends and family: cut off from your parents, cheated on by your spouse, cut off from your child. You'd have to suddenly lose all your worldly goods. The list continues.
What share of these things had Laman and Lemuel experienced at this point?
Suffering all of these things in one lifetime would require very particular circumstances. You'd have to have a few kids and be married a few times. Even then, you wouldn't have enough parents to check all of these boxes.
To suffer all things that can be suffered in one life would require more than what mortal life can physically provide. You would have to be able to experience things through revelation. It should be noted that what one can suffer spiritually in mortality without dying exceeds what one can suffer physically in mortality without dying. There is a point where spiritual suffering will kill you, but it lies beyond the point where physical suffering will kill you.
For some reason, people assume revelatory experiences are less real than physical ones. This has not been my experience. In my experience, they are more real than what we call reality.
As brief evidence, consider that what Jesus bore spiritually was painful enough to make blood come out of the pores of his skin. I don't know of any physical experience that can cause that.
In revelation, you can experience the death of your children dozens of times, even if you do not have dozens of children. You can experience the terminal sickness of your spouse dozens of times, even if you have only been married once. You can be cheated on by your wife far more than would ever be possible otherwise. You can witness your child being kidnapped over and over. The list continues.
What would it be like to suffer all things that can be suffered in life? What would you learn? What would your trust in God become? How would your attachment to mortal things be? How much would you lean on the support of fellow mortals?
If you suffered all things that can be suffered in life, you would know the instability of mankind and refuse to lean upon them. You would know the love of God. You would achieve unconditional love for all people.
You would reach the point where pain had nothing left to teach you. It would be unable to change who you are or how you are.
You would reach the point where nothing surprised you. You would know what it is like to go through an astonishing array of experiences. You would be able to succor anyone through anything, because whatever they had experienced, you would have experienced the same or worse, many times.
Can you imagine getting to the point where you not only bear the full measure of all physical afflictions--which is an astonishing load that even great men such as Job struggled with--but to also continue asking God to further extend what can be learned here by opening the gates of revelatory suffering? Can you imagine standing in that fire and welcoming more as the gates of hell are opened wide?
Perhaps this adds understanding the following scripture:
11 And he shall go forth, suffering pains and afflictions and temptations of every kind; and this that the word might be fulfilled which saith he will take upon him the pains and the sicknesses of his people.
12 And he will take upon him death, that he may loose the bands of death which bind his people; and he will take upon him their infirmities, that his bowels may be filled with mercy, according to the flesh, that he may know according to the flesh how to succor his people according to their infirmities. (Alma 7)