Qaf - 50:8

تَبْصِرَةً وَذِكْرَى لِكُلِّ عَبْدٍ مُّنِيبٍ
[50:8]
To give sight and as a reminder to every servant who turns frequently (to Allah).
To be observed and commemorated by every devotee turning (to Allah).
A vision and a reminder for every penitent slave.