from being used in disobedience to Allah عَزَّوَجَلَّ, even the thanks for eyes is that if someone sees the fault of a Muslim, then he should conceal it.

(Ihya-ul-‘Uloom, vol. 4, pp. 103)

Dear Islamic brothers! If we use our blessings in the proper way and if we thank Allah عَزَّوَجَلَّ, then it is hoped from the mercy of Allah عَزَّوَجَلَّ that He عَزَّوَجَلَّ will continue to increase His blessings upon us and if despite gaining benefits from His blessings we become unthankful and complain, then due to this, Allah عَزَّوَجَلَّ will be displeased with us and we may be deprived of these blessings. Allah عَزَّوَجَلَّ has granted us countless blessings which the human intellect cannot count. Every blessing of Allah عَزَّوَجَلَّ is a collection of countless wisdoms. Today, science has progressed a lot and new things are still being invented, but nothing in this world has ever been invented by which the number of Allah’s countless blessings can be counted. In verse 18 of Surah An-Nahl, part 14, Allah عَزَّوَجَلَّ has Himself stated:

وَ   اِنۡ   تَعُدُّ وۡا   نِعۡمَۃَ   اللّٰہِ   لَا   تُحۡصُوۡہَا  ؕ

Translation from Kanz-ul-Iman: And if you count the favours of Allah, you will never be able to count them. (Part 14, Surah An-Nahl, verse 18)

i.e. the blessings of Allah عَزَّوَجَلَّ in creating the human being, such as a healthy body, safe from defects, perfect eyes, common sense, hearing, the ability to understand things, holding of the hands, walking with the legs etc. and the blessings which are bestowed upon him such as all the things which have been created to fulfil the religious and worldly needs of humans are so great in number that it is impossible to count them, even if someone tries to get the Ma’rifat (insight in Divine matters) of the minor blessings of Allah عَزَّوَجَلَّ, he will never be able to achieve this, then what can we say about those blessings which cannot be counted even if all of creation counts them together. Therefore, Allah عَزَّوَجَلَّ has said: If you try to count the blessings of Allah عَزَّوَجَلَّ and spend your lives in it, even then you cannot do this.

(Khaazin, An-Nahl, Taht-al-Ayah: 18, vol. 3, pp. 117; Siraat-ul-Jinaan, vol. 5, pp. 292)