According to Osho, yes—the other path is bhakti, devotion: the way of feeling, compassion and grace, where you “drown” in prayer, song, and love until self-forgetfulness happens. Witnessing (sakshi) is self-remembering and disidentification through neti-neti; bhakti is surrender and merger. Though their processes oppose—watching versus dissolving—both culminate in the same realization of the divine.
Yes—besides watching your mind, you can also reach God by loving so totally that you forget yourself.