How is there torment in the grave when there are verses such as: "And the Day the Hour rises, the criminals will swear they had not remained [in their graves] but an hour"? And why did our master Zechariah not marry another woman to fulfill his desire for progeny, knowing that his wife was barren?

When great terror descends and distress intensifies, it makes one forget previous pains. To this meaning points the saying of the Prophet, peace be upon him: "There will come a tribulation, and some parts of it will make others lighter" (Narrated by Muslim).

Although the torment of the grave is severe, it pales in comparison to the terrors of the Day of Resurrection and the torment of Hellfire. This is indicated by the Prophet's saying, peace be upon him, regarding the most privileged people in this world from among the inhabitants of Hell and the most miserable people in this world from among the inhabitants of Paradise.

Everything that passes and fades becomes small, diminishes, and vanishes as if it never was. This is similar to how a person views their past life as if it were mere moments, and like His Almighty saying: {On the Day they see that which they are promised, they will feel as if they had not remained [in the world] except an hour of a day} (Al-Ahqaf: 35).

As for the Prophet Zakariyya not marrying another woman, it is because the Qur'an states that when he supplicated to Allah for offspring, he himself had a preventing infirmity, which was old age, as Allah Almighty says: {and old age has overtaken me, and my wife is barren} (Al 'Imran: 40).