To worship ALLAH (subhan-wa-tala) first we have know him in the correct manner. there are misunderstanding between different people of different location and religion. as we cant see ALLAH(subhan-wa-tala) our mind cant imagine his vastnesss. so then how we know him ????  For this we have to go to his scripture that is Glorious Qur'an. where ALLAH (subhan-wa-tala) himself describe is vastnesss, his knowledge, and his capacity.......

In capter 2 surah baqarah aayat 163 " And your lord is one there is no other deity [ worthy of worship] except him the enternal merciful and especially merciful"

By the refernce now we can understand that the lord of the word is only one and to him only we have to worship...

and he futher mention in chapter 2 surah baqarah aayat 21 O mankind worship your lord who created you and thoes before you so you may becomes righteous"

If we read and understand above aayat carefully we can understand that ALLAH(subhan-wa-tala) has not mentioned the word muslim or Arab but he maintioned the word mankind means from the first human being to till the last.t hat he created  all of us. and he is one n only lord of us. but still if we are in doubt. 

here ALLAH (subhan-wa-tala) say's in capter 2 surah baqarah aayat 28 "how can you disbelife in ALLAH, when you were lifeless he brought you to life and he will cause you to die and he will bring back to life and to him you will returned"

and he futher say's in chapter 2 surah baqarah aayat 107 "do you not know that to ALLAH belongs the dominion of the heaven and earth and you have not besides ALLAH any heper or any protector"

if concentrate on this aayat we come to know that he is only one who helps us and protects us in our daily life. so why to ask for hepls and needs to other people where he say's he is the helper and protecter of mine and of you all. so, will rely only upon him for the needs of our our daily life, inshallah will get the happiness from our lord.....

He futher mention his vastness in chapter 2 surah baqarah aayat 255 "ALLAH- there is no deilty except him, the ever living the sustainer of all the existence. neither drowsiness over take him nor sleep. to him belongs whatever is in the heavan and whatever is on the earth. who is in that can interceded with him except by his permission? He knows what is presently before tham and what will be after them and they encompass not a thing of his knowledge except for waht he wills. His "kursi" extends over heaven and the earth and their preservation tires him not. And he is the most High the most Great"