the Tahajjud prayer is an optional prayer that is supposed to be performed in the middle of the night. It is required that a person sleep a little before he gets up for the Tahajjud prayer. It can be performed anytime between Isha and Fajr.
the love and fear that a Muslim feels for Allah. A person with taqwa desires to be in the good pleasures of Allah and to stay away from those things that would displease Allah. He is careful not to go beyond the bouds and limits set by Allah.
confirming the Oneness of Allah. It is the basis of Islam.
the circumfering of the Ka'bah seven times. People usually do this during umrah or hajj.
reward of blessing.
the Revelation that Allah sent down to Moses. It is the Jewish Holy Book