Question: What is the importance Upanayanam in Hindu religion. It is said that only those people who gone through Upanayanam, should chant Gayatri. Why it is like that?
Answer: In the Hindu custom, Upanayanam is a rebirth to a man, when he is invested into spiritual life. If you are invested ceremoniously, it has its sanctity. However, you are free to chant Gayatri. Learn it from one who knows it.