Why I do not Pray to God

And I am more than sceptical about anything religious, god or prayer to god. When I hear that someone is used to pray or when I hear someone praying, the idea just drives me nuts. Why do these people pray and to whom or what for? Do they really know it for sure? I think they do not know or do not care to know. Why do they actually pray? Are they themselves doing it and on their own or prompted by someone else like the stature of a so-called preacher? Or, are they doing as some other people doing it also? But whatever it might be, the fact is that they pray. And what do they pray? Some verbal mumbo-jumbo which mean nothing and signify nothing and even they pray without knowing or understanding an iota of it because if they know and understand they will not pray as I told you it means nothing and signifies nothing. Knowing and understanding make a lot of difference. To whom do they pray? To god? Who that god is? Have they seen him/her? Is she/he a reality in person? Only they know that they realise it in their heart. Realisation is some concept, conceptualised in the sub-conscious level of the mind. That is, the have not seen it but they realise it in their sub-conscious level of mind which is imaginary. So, they pray to some imaginary entity. And what for do they pray? To attain spiritual salvation or obtain some material gain or just for peace and happiness of mind? They do not know. And even they do not know why they pray to god for nothing.