Advaita is a philosophical concept rooted in Hinduism that emphasizes non-duality, meaning that there is no fundamental separation between the individual self and the ultimate reality, often referred to as Brahman. According to this view, the apparent differences we see in the world are illusions, and realizing our true nature leads to liberation and peace. The teachings of Advaita are primarily attributed to the philosopher Adi Shankaracharya, who lived in the 8th century. He argued that understanding our oneness with Brahman can help us overcome suffering and ignorance, guiding us toward a deeper spiritual awakening and fulfillment.