hearts

“You may find a man who does not make any mistakes of the size of letter L or W and he is an exuberant speaker while his heart is darker than the darkest night. You may also find a man who is not able to express what is in his heart with his tongue while his heart shines like a lantern.” (Imam Jafer Sadiq (as) – Al Kafi – Vol 2 – h. 1)

Strength

Holy Quran 11:52

وَيَا قَوْمِ اسْتَغْفِرُوا رَبَّكُمْ ثُمَّ تُوبُوا إِلَيْهِ يُرْسِلِ السَّمَاءَ عَلَيْكُم مِّدْرَارًا وَيَزِدْكُمْ قُوَّةً إِلَىٰ قُوَّتِكُمْ وَلَا تَتَوَلَّوْا مُجْرِمِينَ

And, O my people! Ask forgiveness of your Lord, then turn unto Him repentant; He will cause the sky to rain abundance on you and will add unto you strength to your strength. Turn not away, guilty!