Musar su Isaia 49:8

The fifth path is [that] on the ten days of repentance, the heart of one who fears the Lord will pine inside himself, knowing in his mind that all of his deeds are written in a book and that at that time, God brings all of His creation to judgement about all that is hidden - whether for the good or for the bad. For man is judged on Rosh Hashanah and his final verdict is sealed on Yom Kippur. And at a time that he knows that they will bring his case in front of a king of flesh and blood, does he not tremble greatly, seek counsel for himself and scurry industriously to find a way to escape? And it does not come to his spirit to turn to the right or to the left or to occupy himself with the rest of his business. And he will not break up and furrow his land nor turn through the vineyards. And on a day of distress, he will not falter from preparing his heart to escape like a deer from the hand [of the hunter]. Therefore how foolish are those who go out to their labors and their work until the evening on the Days of Awe - days of judgement and verdict - and do not know what their verdict will be. Is it not that their hearts are preoccupied [even] about their sister on the day when she will be spoken for - as it is stated (Song of Songs 8:8), "What shall we do for our sister when she is spoken for?" And it is fitting for anyone that fears God to reduce his affairs, so that his ideas are at ease; to fix times during the day and night to seclude himself in his rooms, search his ways and investigate; to be early to the watches and occupy himself with the ways of repentance and the refinement of action; and to pour out speech, raise prayer and song and to lay down supplication. And this time is a time of [good] will, and prayer will be heard on it - like the matter that is stated (Isaiah 49:8), "In an hour of favor I answer you, and on a day of salvation I help you." And our Rabbis, may their memory be blessed, said (Rosh Hashanah 18a), "'Seek the Lord while He can be found' - these are the ten days between Rosh Hashanah and Yom Kippur." And it is a positive commandment from the Torah for a man to arouse his spirit to repent on Yom Kippur, as it is stated (Leviticus 16:30), "of all your sins, you shall be pure before the Lord." Therefore Scripture warned us that we should purify ourselves before God with our repentance; and He will atone for us on that day to purify us.

Also, when a man is plunged in pain or grief he has not the strength to fulfill the request of someone who is speaking to him or is asking him for a favor. And it is written : "In an acceptable time have I answered you" (Is. 49:8).

Therefore, it is proper that everyone who reveres God should lessen his usual occupations and let his thoughts be calm, and let him fix hours, during the day and a night, when he can sit alone in his rooms and examine his ways and search them out, and arise even before the watches of the morning to occupy himself with the paths of repentance. And let him not do as in most cases where people fast, or rise early to pray, but they do not actually wage war against the sins in order to remove from themselves every ugly thing. For if a man prays and fasts, and confesses, and still clings to his former ways — this is not the path of repentance. But a man should arouse himself to do complete repentance during the Ten Days of Repentance, for this is a time when God accepts his plea and his prayer is heard, as it is said, "In an acceptable time have I answered thee, and in a day of salvation have I helped thee" (Is. 49:8). And our Sages, of blessed memory, said, "Seek the Lord while He may be found" (Is. 55:6) — these are the ten days that are between Rosh Hashana and Yom Kippur (Rosh Hashana 18a). And they also said that the Day of Atonement, together with repentance, atones. Therefore Scripture has warned us that we should repent and make ourselves pure before God, Blessed be He, in our ways of repentance. As it is said, "From all your sins shall ye be clean before the Lord" (Lev. 16:30). And then he will atone for us with this day, to purify us (Yoma 85b).