There is a higher power beyond the mind. People call that power by different names such as God, omnipresent consciousness, truth etc. There are traces of that power in everything that the five senses encounter. Therefore worship need not to limited to one form or one concept of that reality. It is the purity of thought and feeling that matters not the form or concept. Greater the purity, closer it is. Ceremonial worship is only one aspect. It is useful as it creates a positive atmosphere where one may easily motivate oneself. It is a means to an end which is realizing the oneness among many.