﴿ وَلَقَدْ ذَرَأْنَا لِجَهَنَّمَ كَثِيرًۭا مِّنَ ٱلْجِنِّ وَٱلْإِنسِ ۖ لَهُمْ قُلُوبٌۭ لَّا يَفْقَهُونَ بِهَا وَلَهُمْ أَعْيُنٌۭ لَّا يُبْصِرُونَ بِهَا وَلَهُمْ ءَاذَانٌۭ لَّا يَسْمَعُونَ بِهَآ ۚ أُو۟لَٰٓئِكَ كَٱلْأَنْعَٰمِ بَلْ هُمْ أَضَلُّ ۚ أُو۟لَٰٓئِكَ هُمُ ٱلْغَٰفِلُونَ ﴾

“And most certainly have We destined for hell many of the invisible beings and men who have hearts with which they fail to grasp the truth, and eyes with which they fail to see, and ears with which they fail to hear. They are like cattle -nay, they are even less conscious of the right way: it is they, they who are the [truly] heedless!”

The Truth is a thing which a man has to discover by himself. God has given everyone a heart (mind), eyes and ears. Man arrives at the Truth by utilizing these faculties. The man who does not do so will be unable to discover the Truth, howsoever close it may be to him. Discovery of the Truth is the conscious and deliberate act of every man. Only one who has kept the doors of his heart (mind) open for the purpose, will be able to understand the Truth. Only one who has not covered his eyes with artificial veils will be able to see it. Only one who has not plugged his ears will hear its voice. Such people will recognise the voice of Truth and will surrender themselves before it. And one whose case is opposite to this will remain mindless like the animals. It will not be possible for him to be moved by even the weightiest of arguments. Flashes of God’s brilliant light will appear before him, but he will not be able to see them. The melody of Divine song will come to his ears, but he will be prevented from hearing it. Truth is available to those who are awake; for neglectful people, no truth is Truth.