The Curtain of Twilight is only penetrable by having someone in the Twilight Realm grab Link and drag him in. When seen from afar, the entrance appears to be but a black wall with golden outlining, but when observed at a closer distance, strange markings are seen written on it. Any non-Twili passing into the Twilight without the protection of the Master Sword will be affected by its power and transformed, in most cases, into spirits. Although Link, as the chosen hero with the Triforce of Courage, is transformed into a blue-eyed wolf upon passing through it instead. When the Twilight is lifted from the province covered by it, the Curtain of Twilight disappears along with it.
- In an unused text string, Midna admits that Link can enter the Twilight even without her help, and apologizes for lying to him.
- "Last time, a shadow beast pulled you through the curtain of twilight... But if you want to go that way this time, you'll need the cooperation of someone FROM the twilight...like me!" — Midna (Twilight Princess)
- "In the land covered in twilight, where people roam as spirits, you were transformed into a blue-eyed beast... That was a sign... It was a sign that the powers of the chosen one rest within you...and that they are awakening." — Faron (Twilight Princess HD)
- "...[Link]... If you want to go into twilight... crawl under...the bridge... ...I should tell you... You can enter the Twilight Realm...even without my help... I'm sorry..." — Midna (Twilight Princess)