The moment we say happiness, bliss, Ananda, we feel smiley face. Why? Because the moment there's something to reflect light,. You see, light, it's there. It's already there. All conscious experiences depend upon consciousness. This is all the background to pointing out what Ananda really is in Advaitic sense. We know what happiness is and we really want it. Really extraordinary happiness. Unending. And I think that's what you're promising. That's what Ananda is. No. And that's not bad news. It's actually good news."
Swami Sarvapriyananda teaches the Katha Upanishad, one of India's most revered texts which is also a part of the Vedas. It is a collection of philosophical poems representing a conversation between the sage Naciketas and Yama (god of death). They discuss the nature of Atman, Brahman and Moksha(liberation).