The realities of matters will manifest themselves after ones death, so much so that even the disbelievers will also come to know of them. Hence Allah Ta‛āla mentions
وَبَدَا لَهُمْ مِنَ اللَّهِ مَا لَمْ يَكُونُوا يَحْتَسِبُونَ
“and there will become apparent to them from Allah,
what they had not been reckoning.”
So how gross a mistake would it be to worry and endeavor in finding out about those things which will expose themselves? At this time, we ought to do that which we will become unable to do after death, that is, acting upon those actions which are in our ability and believing in the Ghayb (unseen). People leave out the important matters and start opting towards insignificant matters.* May Allah have mercy on us, Amīn.
Malfuzāt Hakīmul Ummat Malfuz # 105 – Vol. 12 Pg. 70
* Hadīth Sharīf states,
الكَيِّسُ مَنْ دَانَ نَفْسَهُ، وَعَمِلَ لِمَا بعدَ المَوتِ، والعَاجِزُ مَنْ أتْبَعَ نَفْسَهُ هَواهَا وَتَمنَّى عَلَى اللهِ
Intelligent is he who takes accountability of himself and does deeds for (life) after death,
(while) helpless is he who follows his desires and is yet hopeful from Allah.
(Sunan Tirmidhi #2459)