Why should we not procrastinate our repentance?

Alma 34:30-41


Alma 34:30-41
30. And now, my brethren, I would that, after ye have received so many witnesses, seeing that the holy scriptures testify of these things, ye come forth and bring fruit unto repentance. 31. Yea, I would that ye would come forth and harden not your hearts any longer; for behold, now is the time and the day of your salvation; and therefore, if ye will repent and harden not your hearts, immediately shall the great plan of redemption be brought about unto you. 32. For behold, this life is the time for men to prepare to meet God; yea, behold the day of this life is the day for men to perform their labors. 33. And now, as I said unto you before, as ye have had so many witnesses, therefore, I beseech of you that ye do not procrastinate the day of your repentance until the end; for after this day of life, which is given us to prepare for eternity, behold, if we do not improve our time while in this life, then cometh the night of darkness wherein there can be no labor performed. 34. Ye cannot say, when ye are brought to that awful crisis, that I will repent, that I will return to my God. Nay, ye cannot say this; for that same spirit which doth possess your bodies at the time that ye go out of this life, that same spirit will have power to possess your body in that eternal world. 35. For behold, if ye have procrastinated the day of your repentance even until death, behold, ye have become subjected to the spirit of the devil, and he doth seal you his; therefore, the Spirit of the Lord hath withdrawn from you, and hath no place in you, and the devil hath all power over you; and this is the final state of the wicked. 36. And this I know, because the Lord hath said he dwelleth not in unholy temples, but in the hearts of the righteous doth he dwell; yea, and he has also said that the righteous shall sit down in his kingdom, to go no more out; but their garments should be made white through the blood of the Lamb. 37. And now, my beloved brethren, I desire that ye should remember these things, and that ye should work out your salvation with fear before God, and that ye should no more deny the coming of Christ; 38. That ye contend no more against the Holy Ghost, but that ye receive it, and take upon you the name of Christ; that ye humble yourselves even to the dust, and worship God, in whatsoever place ye may be in, in spirit and in truth; and that ye live in thanksgiving daily, for the many mercies and blessings which he doth bestow upon you. 39. Yea, and I also exhort you, my brethren, that ye be watchful unto prayer continually, that ye may not be led away by the temptations of the devil, that he may not overpower you, that ye may not become his subjects at the last day; for behold, he rewardeth you no good thing. 40. And now my beloved brethren, I would exhort you to have patience, and that ye bear with all manner of afflictions; that ye do not revile against those who do cast you out because of your exceeding poverty, lest ye become sinners like unto them; 41. But that ye have patience, and bear with those afflictions, with a firm hope that ye shall one day rest from all your afflictions.