According to Osho, the 'outer world' is merely what appears in perception—reflections in the mirror of mind—while the 'inner world' is awareness itself, your true reality. As awareness deepens, the dividing mind dissolves and the inner–outer split vanishes; only nondual consciousness remains. From the outside we seem separate, but inwardly we are one, a single, undivided presence beyond in and out.
What you see is like a mirror’s reflections; your real inside is the seeing itself, and with clear seeing the line between inside and outside disappears.