Extreme diversity
India is roughly 30% the size of the US but has 1.2 billion people who speak nearly 1600 languages in that land area. Around 30 of those are spoken by at least a million people. A majority are Hindu by religion but there is also a large number of Muslims, Christians, Buddhists, Jains, Sikhs, and a couple others.
India has 20000+ ft mountains ranges next to Jungles, coastlines, and deserts. As you travel through it, the terrain changes fast. Many regions of India have their own distinct cuisine as well.
It's very hard to say the phrase "Indian Culture". The singular "culture" doesn't do India justice. I feel you could maybe get away with "Mexican culture" or "French culture" and generalize ok. In India, much less so. We should say "cultures". There are entire swaths of people who don't speak a common language. Hindi is probably the only language most non-Indians know about and they're often surprised when I tell them that only 41% of Indians speak it as their native language. In addition to the language differences, there are people are living so drastically different from one another that it's hard to say they have the same culture.
As a traveler, you can sometimes feel like you're entering a new country when you take a 12-15 hour bus ride between places. This opens up new places to see, new words to learn, new foods to try, new terrain, flora/fauna, etc.
When I'd talk to other travelers there, it'd blow my mind how many things there were left to see. X caves here, Y temple or fort there, this swimming hole, this beach, that festival, and so on. You're never done in India.
