If we believe the Day of Judgment is meant for reward and punishment, why do we experience the punishment of the grave beforehand?

PunishmentFaceGraveQiyama
If we believe the Day of Judgment is meant for reward and punishment, why do we experience the punishment of the grave beforehand?
Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 3 weeks ago

The results of our deeds can be in different stages starting from this life when believers who do good feel peace of mind and mental happiness, and bad doers feel depressed and unhappy. Grave us another stage where we see the results of our deeds, then the Day of Judgement.

'Wassalam.