According to Osho, witnessing does not bring joy; joy and sadness belong to psychological identification. True witnessing is beyond all dualities—neither hot nor cold, happy nor unhappy—and yields a deep, indefinable stillness: total peace, shunyam, the fullness of emptiness. Like a mirror, awareness reflects whatever arises without clinging or aversion; this transcendence is the essence of meditation and Buddha-hood.
No—when you truly just watch, you don’t feel happy or sad; you rest in a quiet, spacious calm that lets everything come and go.