Qur'an

Q: Are daif hadeeth virtues of surahs and adhkar 100% guaranteed or one can hope that after doing them Allah will give them and can one just stick to sahih and hasan hadeeth like virtues of surahs baqarah and imran that whoever recites them they will intercede for him and hasan hadeeth like surah mulk. 

There are some daif hadeeth like recitation of certain surahs in night like surah Yaseen, Dukhan, Rahman Waqiah and Hadeed, these three surah recitation anytime during day or night on day of qiyamah he will be called from the people of jannatul firdaus. If these daif hadeeth virtues aren't 100% guaranteed, can I stick to daily recitation of one juz and Musabihaat surahs before sleeping along with Surah Mulk and Surah Sajdah.

Q: There is a verse in the Qur'aan to this effect: "Are you waiting that the angels come to you or your Rabb comes to you or that some of the signs of your Rabb come to you. The day some of the signs of your Rabb come a souls Imaan will not benefit it."

Can you please explain this verse to me.