does god reside in earth or our heart???

I agree with you that God is present and available in every person, but a lot of people let the devil take them over! Our biggest problem in trying to understand God is that we as human beings want to define Him in our own image, rather than letting Him be who and what He is: eternal, transcendent, just, holy, faithful, truth.

Yes its right if everyone feels like that then no problems will going to arise in this world and no bomb blasts and terrorism is going to taken place..

He resides in my heart and comes out to guide me whenever I require it.

Yes...There is no doubt about it...There is only ONE GOD and HE IS OMNIPRESENT, morover I know that HIS primary address is the heart of a pure devotee, not in kailash or dwarka or elsewhere... I agree with you wholeheartedly... You see I am a Heartwalker, one who walks the path shown by the heart.