What does oneness mean in the context of Tibetan Buddhism?

Tibetan Buddhist leader His Holiness the Seventeenth Gyalwang Karmapa explains how exile has given Tibetans a heightened experience of oneness. With very little political solidity to draw upon, Tibetan culture in exile is held together through trust, shared values and faith, all traits of the Buddhist concept of oneness, says the Karmapa.