Turn around from the place you are standing and go straight. You will find an open door. Now exit from the door. Now turn left and go straight near the closed door. Now turn right and go straight. On the left side you will find portrait. Now slightly turn right and go straight near the closed door. Now turn right. You will find an open door. Now enter into the door. Now go straight. Right now you are standing in front of the curtain. That will be your final destination.