therefore...
therefore, he can intervene and change the will of mankind, exactly as different seasons and environments effects on individual's will. therefore, we see man is able to enforce his will in particular environment and season while he is not able to do so in another environment or season. the word guidance, in arabic "hidayah", has two meanings: one is to show the right path exactly as the sign does on the streets for a driver to locate and reach his destination.
another meaning is to take a person to the actual final destination exactly like a guide of a tour and or a journey, who takes the visitors to different locations explaining the significance of each. the word guide in arabic has been used in both meanings in the holy qur'an. therefore, there is no contradiction between the two verses: "god guides whoever he wishes and leaves whoever he does not". the qur'an 35:8 and the verse, "we have guided mankind to the right path".
the qur'an 76:3 the first verse adopts the first meaning of guidance which means to take one to the final destination and the second verse adopts the second meaning which means to indicate and show the right direction. Adoption: the islamic view adoption means to claim blood relationship with one who has no blood relationship and consequently shall be subject to the rules and regulations based on blood relationship such as marriage and inheritance rights.
in islam, this kind of pseudo relationship is not allowed because it is a mere lie. while islam encourages to help others and have someone be raised and grow with the family, i.e., it does not allow to call a person as father or son when he is not. the holy qur'an says, "the adopted children cannot be called children(of your own) as you say. god says the truth. call them children of their (own) parents. this is the just way to call them.
if you do not know their parents, then call them brothers in your religion". (the qur'an 33:5). in other words, almighty god says this is pseudo adoption. the child is not yours. therefore, you cannot lie either in speaking nor in claiming him your son. one has to call him brother without claiming any blood relationship. consequently, the rules and regulation for marriage and inheritance do not apply to this adopted child as a blood child.
How to repent repenting in islam does not need any particular place, any person can repent at any time he thinks he should.