In the Braille Cavern, there is a wall at the back that translates, Relicanth first, Wailmer last. (not a direct translation.) So, in your Pokemon party, put Relicanth in the first slot, and Wailmer in the last slot. read the door again, and you'll hear three BOOMS. These are the Regi doors opening. Regirock is in the desert, Regice is just north of Dewford, and Registeel is between Fortree and Lilycove.
To get these ancient beings, you need to follow some rules. For Regirock, start at the braille wall and move down two spaces, and then left or right two spaces. (I forget which one it is, but I'm pretty sure it's left.) Then use Strength.
Regice is the easiest one to encounter. Simply walk up to the Braille writing, read it, then wait 2 minutes of real-world time. Voila!
Registeel is fairly easy as well. "Read" the braille, then move to the center of the cavern, then use Fly.
I recommend going to sky pillar to capture rayquaza or solve the braille puzzle in the sealed chamber to allow you to capture the regis.
Look up a normal braille sheet on the internet
To get into the Desert Ruins in Pokemon Ruby, Sapphire and Emerald you need to complete a puzzle. This puzzle is found in the Sealed Chamber hidden on Route 134.
A person can read the braille in the Secret Chambers in Pokemon Sapphire by translating the braille to the corresponding letters of the alphabet. A person will be required to dig to reach the appropriate area of the chamber.
To solve the braille puzzle in the Desert Ruins on Pokémon Sapphire you will need the HM Strength. Then you need to move two steps down from the braille sign and two steps right, then use the HM move Strength.
You can research "How to read Braille" for more information.
The complete subject is "Braille is a code".
It's in the sealed chamber which is in route 134.
Braille
A braille reader does not exist in Pokemon Ruby or any Pokemon game with braille used as a puzzle. Translating the braille for yourself is very simple if you print off a braille alphabet sheet.
A braille chamber is a puzzle which you must solve in order to unlock certain Pokemon, such as Regice, Regirock or Registeel.
dotted hole is on the south side of six island. (the sapphire is in there) a little extra info: dotted hole does have braille in it.