Paryushan

The only festival is the world which is about going back to basics, Minimalism, doing more with less, Self Control, Eat less (a lot of fasting)

Controlling your desires (all your senses) and focussing on improving self by trying to experience yourself using Samayik and Pratikraman.

Asking for forgiveness and forgetting others though all mind, words, body (मन से, वचन से, काया से मिच्छामी दुक़द्दम)! Making yourself Judgement FREE and hopefully extend the same to rest of your lives.

https://en.wikipedia.org/wiki/Paryushana