नमस्कार. This is a space for knowing about Advaita or Non-Duality.
Every being seeks happiness. Inspite of incessant search, most of us do not find real happiness. Yet we get a glimpse of this happiness and serenity in our deep sleep.This experience certainly proves that happiness is with in Self, which is our true nature. The main obstacle in realizing this innate bliss of the self in our waking state is our ego or personality (assumed 'I').
Advaita Vedanta clearly shows us the way to realize this innate happiness.