.Can anyone help me in correcting my grammatical mistakes?
The Real secret of Happiness:
The real secret of true happiness is not hidden in the achievement of material things, but in those things which provide contentment to the heart, such as helping needy people, loving them, working for the betterment of humanity and doing things which are beneficial to people. (This is a very long sentence. It would be better to break it into two or three sentences.) Although materialistic things such as money and other basic needs provide happiness and contentment in the short term, they do not in the long term. You must have observed that although God has blessed people with material things they are still not always happy. The life of the holy prophet gives us a lot of examples of real and true happiness. The holy prophet always helped the needy people and loved with them. The Holy Prophet never emphasized material things.