The Kingdom of Heaven is within us. He is there. He is the soul of all souls. See Him in your own soul. That is practical religion. That is freedom. Let us ask each other how much we are advanced in that: how much we are worshippers of the body, or real believers in God, the spirit; how much we believe ourselves to be spirit. That is selfless. That is freedom. That is real worship. Realise yourself. That is all there is to do. Know yourself as you are — infinite spirit. That is practical religion. Everything else is impractical, for everything else will vanish. That alone will never vanish. It Is eternal. Hospitals will tumble down. Railroad givers will all die. This earth will be blown to pieces, suns wiped out. The soul endureth for ever.
- Swami Vivekananda
The Complete Works of Swami Vivekananda/Volume 4/Lectures and Discourses/The Practice of Religion