On being grateful and focusing on what we have, instead of the things we do not have.

Allah SWT says:

وَإِذْ تَأَذَّنَ رَبُّكُمْ لَئِنْ شَكَرْتُمْ لَأَزِيدَنَّكُمْ  ۖ  وَلَئِنْ كَفَرْتُمْ إِنَّ عَذَابِى لَشَدِيدٌ

"And [remember] when your Lord proclaimed, 'If you are grateful, I will surely increase you [in favor]; but if you deny, indeed, My punishment is severe.' "

(QS. Ibrahim 14: Verse 7)

Video by Aida Azlin (love her)