Brahma Sutras systematizes the philosophy of the Upanishads in 555 aphorisms. In this book the original aphorisms are given in Devanagari followed by word-for-word English rendering, and the interpretation of the sutra according to Shankaracharya. The introduction contains a comparative study of the bhashyas of Shankara, Ramanuja, and Nimbarka.
I have been asked many times, Why do you laugh so much and make so many jokes? I become serious sometimes--when I have a stomachache! The Lord is all blissfulness. He is the reality behind all that exists. He is the goodness, the truth in everything. You are His incarnations. That is what is glorious. The nearer you are to Him, the less you will have occasions to cry or weep. The further we are from Him, the more will long faces come. The more we know of Him, the more misery vanishes.
-Swami Vivekananda