THE HOLIEST Readings (The Koran)
Tablet Twelve
SACRIFICE
<1>Sacrifice (being humble) is a must for a spiritual aspirant. However, sacrifice can be of three kinds like any other action. It can be from ignorance, passion, or knowledge. <2>Sacrifice which is performed for establishing the Kingdom Of Heaven cannot be from ignorance. It is from knowledge.
<3>Esa the Christ is the best example and symbol for humanity to show that the Kingdom will not be established without sacrifice. He came to show the way to Jews and others how to sacrifice for the human ideal (higher self). <4>That is why he is an example for humanity.
Surah Repentance (At-Taubah) 
Those who die in God's way (establishing the Kingdom Of Heaven) will be highly rewarded:
The believers surrender themselves and their possessions to God in exchange for paradise [Pure Consciousness]. So they fight for His cause and slay the enemy or are slain. This is the binding promise God has taken upon Himself, it is in the Torah, and the Gospel, and the Qu'ran; and who fulfills His covenant better than God? Rejoice, therefore, in this bargain you made with Him. Indeed it is the ultimate victory. (111)
Surah Ornaments of Gold (Az-Zukhruf) 
Sending Christ to set an example for the Children of Israel to show them how to establish the Kingdom Of Heaven by sacrifice:
He [Esa] was only Our slave upon which we bestowed favor, and made him an example for the Children of Israel. (59)
SELF-REALIZATION
<7>Self-realization means to know who you are. It is understood by wise men that "knowing self is knowing God." We are in the image of God, which means likeness to Him. So if we know ourselves, we will be able to know Him.
<8>Also, knowing Him is the same as knowing self. That is why by reading the Scriptures, listening to the truth spoken by realized souls (Satsang), contemplating the universe, etc., the human can come closer to Him and also to his own self.
<9>Each man is enough to understand all the truth of the universe by himself if he is a real seeker. He has the most perfect body and faculties to guide him on the path.
Surah The Rising of the Dead (Al-Qiyamah) 
Each person is enough for judging himself:
In truth man is a witness over his doings, (14)
SIN
Surah The Bee (Al-Nahl) 
Sinning and not appreciating the Grace of the Lord will affect prosperity:
God put an example as a guidance for you, the case of a town which was secure and well content, and its appointed provision coming to it from all quarters plentifully; but it became ungrateful and disbelieved in God's favor, so He made it experience famine and fear in the consequence of what they used to do. (112)
Surah Spider (Al-'Ankabut) 
The false leaders will create great burdens for themselves. Also in the Koran, karma (samskara) is equal with sin:
However, they [false leaders] certainly will bear their own load beside the load of others which will be added to theirs, and they surely will be questioned on the Day of Judgment concerning that which they fabricated. (13)
SPIRITUAL STRUGGLE IS FOR SELF, NOT FOR PROPHETS OR GOD
<18>God's Revelations, Prophets, Gurus, etc., are all the lights for human guidance. Each is like a light shining out of a dark jungle. It is true that the spiritual aspirant is in the jungle and cannot see anything, but if he directs all his attention to that light, he will reach it and escape the darkness.
<19>So it is not a favor from the disciple to his spiritual teachers that he become a believer, but it is the Masters, Prophets, or God who bestow favor upon the aspirant. They are striving for themselves, and the spiritual teachers are the lights of their way.
Surah The Spider (Al-'Ankabut) 
The real meaning of "jahad," an internal and external struggle to establish the truth (the Kingdom Of Heaven):
Whosoever strives in the Ways of God, strives only for the good of his Soul; God is certainly Independent from all creatures. (6)
Surah The Private Apartments (Al-Hujurat) 
Those who believe actually do good to themselves, not to the Prophets:
They make it as if they have done a favor to you that they have surrendered (to God).