I have never been to India. (I am from Scandinavia) But many years ago I lived in Nairobi, Kenya. My neighbours came from many different countries, all over the world.
One day a man came to my door. He gave me a box of cakes and sweets, and he said Happy Diwali to me.
I became so surprised! But I invited him in, so he could tell me more.
He told me about the Diwali traditions. This visit became the beginning of a very good friendship, where we shared each other's traditions and celebrations.
Happy Diwali to all of you!