Behold, its taught in the Medrash the following -
ברכה וקללה למה נאמר. לפי שנאמר החיים והמות נתתי לפניך הברכה והקללה שמא יאמרו ישראל הואיל ונתן המקום לפנינו שני דרכים דרך החיים ודרך המות נלך באיזו מהן שנרצה, תלמוד לומר ובחרת בחיים
Why does the verse need to mention blessings and the curses? As another verse (Deuteronomy 30:19) already mentions "I have put before you life and death, blessing and curse. Choose life—if you and your offspring would live" Perhaps Israel will say that since HaShem has given us two paths to choose from, the path of life and that of death, we can go in whichever one we choose.. so this verse comes to teach us that no, we should only choose life.
We must now see, what would have been the thought inside someones head that would lead this person to choose the path of death? Who would be in such a strange state of mind that we need a verse in the Torah to warn us to choose the opposite path and have to choose life? And if ones nature is so strong that even that he/she knows they are on the path towards death, they follow the advise of their natural inclination towards death, then what even is this verse going to do to warn/help them by saying to choose life? Since this person has zero will to live, this warning makes no sense for them.
However, our ancestors taught us a huge matter in this regard, and there was divine prophetic inspiration in their houses of study, as they foresaw in the future there will be a day to come that the living will be jealous of the dead, and they had written the following in the Mishnah -
וְעַל כָּרְחֲךָ אַתָּה חַי, וְעַל כָּרְחֲךָ אַתָּה מֵת
..against your will you live, against your will you will die..
As we see with our own eyes in these days of suffering of World War II, as there was never anything like this in the history of the world, where it was considered a blessing to be dead and a curse to be alive, may HaShem have mercy on us. Due to all the suffering, degradation and lowliness, hard work, starvation and all forms of sickness, people in general have given up hope as to why they should continue living, and death seems sweeter to them than being alive.
As we see below from King David -
(18) The LORD punished me severely,
but did not hand me over to death.
We can reread this verse to say that the punishment and suffering was that we were NOT handed over to death, that we remain alive. But in truth, during those times of suffering, one must reinforce with tremendous faith, and to know there is nothing random or happenstance in the world, whether its a large or small matter, whether in the physical or spiritual, everything is divine providence from HaShem Yitbarach. One must reinforce their belief and knowledge that HaShem is righteous in all of His ways, and devout in all of His actions, even though we know nothing of the ways of the Holy One Blessed be He.
As the holy Rabbi Yechiel Michel of Zlatshov, may he be remembered for eternal life, has taught based on the below verse from Pslams -
(8) I am ever mindful of the LORD’s presence; He is at my right hand; I shall never be shaken.
One must custom him/herself to the attribute of equanimity, that everything is for the good. Whether HaShem is with me in His attribute of Mercy, and His kindness is surrounding me, or whether it seems He is against me, where the attribute of justice reigns and the the path of misfortune is before you, G-D forbid.. either way, I know and believe, that whatever HaShem does, it is unconditionally for the good!
And these words are known from the elder, the Holy Rabbi, Rebbe Uri the firebrand of Stralisk, who explains the famous liturgy -
אַ סִתְרוֹ יוֹשֶׁר: עֲצָתוֹ אֱמוּנָה
His secret is uprightness! His counsel is faith
Which we we read the above as, 'since HaShems righteousness is secret (not always revealed), the advice to deal with the potential darkness is faith, and that all of his actions are truthful. That all actions of HaShem are true and ultimately for the good from HaShem, may He be blessed, as He is the source of mercy and kindness.
And in truth, whoever has a slight amount of logic and reason in their brain, can see that everything is from The Creator, and your strength is reinforced, and life is chosen, and the hope that everything will be good reigns, and that one day we will be free, and there will be a time when I will see the salvation of HaShem and have the status of a survivor.. whoever believes this, is called someone who is always living a life, and is alive at all times.. and is prepared to receive everything with simplicity, and to this person salvation is nearby, which is not the case with someone who believes in chance and happenstance, G-D forbid - as salvation is far from the wicked.
As the first of His works of old.
The first fruits of His harvest.
All who ate of it were held guilty;
Disaster befell them
—declares the LORD.