Because your sins are forgiven for a total of two years, that’s why.
“It was reported from Abu Qutaadah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) was asked about fasting on the Day of Arafah. He said, ‘It expiates for the sins of the previous year and of the coming year.‘ Narrated by Muslim.”
Also, make a lot of du’aa, prayers, and send plenty of peace and blessings to the Prophet Muhammad [saw] on this day, because it is the last of the blessed 10 days of Dhul Hijjah.
In the Name of Allah, the Most Gracious, the Most Merciful
“And fear the Day when you shall return to Allah, and every soul shall be compensated for what they earned, and none shall be dealt with unjustly.” 2:281
The day to be feared is awesome indeed. Believers’ hearts dread the events of that day when all will be made to stand in front of God to face the reckoning of their deeds. This verse serves as a fitting comment on a passage devoted to the liquidation of past unfair dealings.
This fear is the powerful ‘voice within’ which Islam kindles in the deepest recesses of people’s minds and hearts to act as a potent guiding force in life. Thus Islam proves yet again how vigorous, well-integrated, practical and merciful it is, and demonstrates that its overriding aim and objective is the happiness and well-being of man as an individual, and human society as a whole.
In the Name of Allah, Most Gracious, Most Merciful
“Have you not considered how Allah presents an example, [making] a good word like a good tree, whose root is firmly fixed and its branches [high] in the sky? It produces its fruit all the time, by permission of its Lord. And Allah presents examples for the people that perhaps they will be reminded.” 14:24-25
In The Name of Allah, The Most Beneficent, The Most Merciful“And there is the type of man who would sell his life to earn the pleasure of Allah; and Allah is Most Compassionate towards His devotees.” 2:207
These people are willing to dedicate their souls and bodies to Allah, for nothing in return other than His pleasure. It is a deal they conclude without a moment’s hesitation, desiring nothing else but divine blessing and approval.
In the Name of Allah, Most Gracious, Most Merciful
“Those who love the life of this world more than the Hereafter, who hinder (humankind) from the Path of Allah, and seek therein something crooked: they are astray by a long distance.” 14:3
Giving preference to the life of this world puts a person in a position of conflict with the requirements of faith, and on a collision course with the “path of Allah.” The situation is reversed when preference is given to the life to come. For then, this life is set on the right course. People enjoy it with moderation, always keen to earn Allah’s pleasure. Hence there is no conflict between their preference for the life to come and their enjoyment of this life with the pleasures that it offers.
“And there is the type of man who would sell his life to earn the pleasure of Allah; and Allah is Most Compassionate towards His devotees.” 2:207