No one owns anything. Anyone who has lost something they thought was theirs forever finally comes to realize that nothing really belongs to them. And if nothing belongs to me, then there's no point wasting my time looking after things that aren't mine.
With sincerity and earnestness one can realize God through all religions. The Vaishnavas will realize God, and so will the Saktas, the Vedantists, and the Brahmos. The Mussalmans and Christians will realize Him too. All will certainly realize God if they are earnest and sincere.
When I was younger, I felt like I could say anything and it was funny. I've started to realize that what I say and do does affect everybody around us. I'm not just talking about what you put on a record - even just walking into a store and how you interact with the person behind the checkout counter.
Every one of the great revolutionists, from Isaiah to Shelley, have been optimists. They have been indignant, not about the badness of existence, but about the slowness of men in realizing its goodness.