You may write a letter and put it also inside in an envelope. Unless you paste it is not safe. Similarly God may be in the temple and you may also go to the temple. But only when you inscribe god in your heart he will become yours. You can go to Standard 1 only after you complete LKG and UKG. So also you may ask, " Can I see God only after doing Pooja and Abihishekam". It is true you cannot eat without your mouth. But can you eat without your hand? Pooja and Abihishekam are like your hand. . .