The Concept of Utilizing Time

Islam does not encourage a Muslim to be himself (no concept of being self in the Islamic Shari'a). Every Muslim person must be as taught by the teachings of the Qur'an and al-hadis and the knowledge of the Prophets' heirs. Of course, the science is taught by our noble guiru-guru, whose art, we readily understand science.
The concept of human beings themselves is the concept of lust (hobby). Pleasure can be bought, but sometimes the pleasure is the devil's trick.

One of the signs of pleasure is the devil's trick is to feel light to go to pleasure and not feel guilty about disregarding God's commands. For example, the spirit of watching soap operas for the evening at 11 pm, but abai azan sound and lazy or rush shalat isya. The spirit of watching the ball at 1 to 3 pm, but not discipline when you wake up at dawn prayer, do not even feel important, ignore, pass, live prayer.
fishing for hours not because of the need for fish, but enjoying the fun, not accompanied or interspersed with the recitation of the dhikr and even the time of prayer, then the pleasure of spending such time (because of mere pleasure is not a necessity to the fish) is categorized as a futile, , befriended satan.