Dear Smt. Jayasala: Thank you for sharing your excellent insight about the difference between religion and spirituality. Many facts, you had mentioned about the existence of the universe as a huge mathematical equation that takes care of the conditions needed for everything to exist and develop over a period of time. A good book to read is "Einstein's Enigma" written by Jose Rodrigues dos Santos. Even though it is a fiction, all scientific facts mentioned in the book are real and one can relate to that easily by reading them. One quick point for your attention: How does one invent without investigation and questioning?