Love&Hate for the sake of Allah
These ahadieth capture the characteristics that are necessary to attain the sweetness of Emaan as well as complete faith.
The messenger of Allah (saw) informs us about three qualities and if one was to acquire them they will relish and taste the sweetness of emaan. The first is to love Allah and his messenger (saw) over everyone and everything. I believe that when someone loves an individual they will do anything in their power to make them happy and avoid upsetting them. If we loved Allah and his Messenger (saw) the way we are suppose to then a lot more people would fulfil their duty to Allah.
Anas (ra) narrated that prophet (saw) said; "None of you is a believer until I am dearer to him than his father, his child and the whole of mankind". By not doing so that person will not attain complete faith and deeds won’t be accepted.
The second is someone who loves another person only for the sake of Allah. We have to check and asses whether Allah would be pleased this person being our companion. Will this person benefit me and visa versa. One has to love solely for the sake of Allah. The last characteristic is the hate and fear of turning back to disbelieve as much as one hates being flung into the fire. After Allah saves someone purely out of His mercy one should be grateful and a believers liking and disliking isn’t his own choice but is detemined by Allah azza wa jal. After one acquires these characteristics he will definitely taste the sweetness of emaan.
People of bid’a say emaan doesn’t increase nor decrease while Ahlul Sunnah wal Jamaa’a do.
Explanation by Abu abdillah Yunus Ibn Mahmoud