Pole saana Salman Osman. I believe he was close to you and you still hurt inside of you, from the name I believe you are Islam but if I am wrong then I urge you to forgive me, I know for a fact that Islamic religion requires you to pray and remember those who have past while hoping and praying they rest in peace Thus I urge you to do that for him or if you don't know how then consult someone who knows the process.
To show respect to you grandfather next time pleeeeease write properly so that it is well presented. I dont believe you were in such a hurry that you failed to write full words showing the respect and love you felt for him... Hayo ni maoni unaweza chukua au ukapotezea tokana na utavyo ipokea...