According to Osho, there is no contradiction: 'carry the cross' means remember death each day to stay alert, while 'celebrate the bridegroom' means rejoice in life’s presence. Hold death in awareness without fear or obsession; let it intensify celebration. The body is mortal (the cross), consciousness the bridegroom. Live both together—carry the cross dancing—until life and death reveal themselves as two faces of one energy.
Remember that everyone dies, but use that memory to dance and enjoy today—not to be scared.