That is...
That is, the same actions, which previously deserved rewards, would now be decreed to carry punishment. Or would say that henceforth, this particular action neither carries any reward or any punishment. For example, the population in some of the countries is less and the government or the Legislative body of that country decides that a larger population for that country is necessary. As a result, prizes and rewards are ascertained for the fathers and mothers, who have many children.
With the ascertainment of the rewards the people are encouraged and thus the population of the country increases. With the irregular increase in the population, various cultural, financial and political difficulties surface. Thus, it is possible that the very same previous people would now decide that henceforth, not only possessing a large number of children would not be encouraged but would also entail punishments, or that they would just declare the previous rewards as null and void.
Anyway, from some of the verses, it can be understood that, Allah, being better and more aware, of the good and the bad for his servants, than anyone else, and for the purpose of their reaching their desired perfection, has ascertained certain rewards and punishments in the other world corresponding to their voluntary deeds in this world. In reality, the connection between the rewards and punishments with the deeds of man is purely imagined and hypostatized.
And whoever does good deeds, whether male or female and be a believer, then these shall enter Heaven and they shall not be wronged (even) to the husk of a date-stone.” ^2 From the apparent meaning of the above-mentioned verse, it can be understood that the reward and punishment is in relation to their actions, and this connection has been ascertained by Allah.
As a result, from this verse and other similar verses, it can be concluded that Allah has established an imaginary and hypostatized connection between the actions and their rewards and punishments.