Grateful Person

I remember one verse in holy quran that mention : "Person who always be grateful for Allah gift then Allah will add more gifts to him..."(QS 14:7).

That verse is clearly show to us one of the key to be succeded in current life and life after death is being a grateful person. Commonly, a Man always feel lack of bless from Allah in his life. For instance, when We still studied in colleague, We feel that our monthly "income" from our parents is less than enough to cover our life. After We finish the study and started to work We receive higher income rather our "Monthly income" from our parents but We still feel not enough.