Monks of this tradition dedicate themselves to the perfection of their mystical senses, called the Inner eye. They do this by purposely blinding themselves, usually merely covering their eyes, although some go as far as removing them or blind themselves permanently to rely soley on their inner eye. Monks of this tradition also often recruit blind people into their order, to teach them to go beyond their limited sense and reach new heights of perception. 

Heightened awareness

When you choose this monastic tradition at 3rd level, your other senses are sharper, and your awareness is heightened as long as you cannot see. As long as you are unable to see naturally or have your blinding equipment on, you gain the following benefits:

• You have a blindsight of 30 feet. This sense increases when you reach certain levels in this class, it increases to 60 ft at level 6, 90 ft at level 11 and 120 ft at level 17.
• You have advantage on all Wisdom (perception) checks you make that don't rely on sight (therefore, ones that rely solely on hearing, smell, taste or touch).
• Attack rolls made against you do not gain advantage because of the blinded condition.

You cannot merely close your eyes to gain these benefits, as the temptation to open them would be too great. Instead, you must cover your eyes with a piece of cloth, a modified helmet or something similar, remove your eyes permanently, or be blinded from another source in order to do so. You can cover or uncover your eyes with a piece of cloth, a modified helmet or something similar as a bonus action.

Greater Reflexes

Also at 3rd level, your reflexes are also heightened when you cannot see. Whenever a creature misses you with an attack, if you are blinded you can immediately use your reaction to make an unarmed strike against that creature, provided it's within your reach. You can spend a ki point to make two unarmed strikes against the same target instead of one when you do so.

Untouchable

Starting at 6th level, you become even harder to hit. While you are blinded, you can use your patient defense feature without spending a ki point. You can do this a number of times equal to your Proficiency Bonus, after which you cannot do so again until you finish a short or long rest.

You also gain Another Reaction (2 total). You can use this reaction only on your Greater Reflexes feature and any other feature that does not involve Casting a spell or increasing your AC.

Far Sight

At 11th level, you can sense things that are far away with your inner eye. You can cast the Arcane Eye spell without consuming a spell slot or material components, if you are blinded when you do so, your arcane eye has a blindsight equal to yours instead of its normal vision.

Once you've cast this spell this way, you cannot do so again until you finish a long rest unless you spend 2 ki points to do so. Wisdom is your spellcasting modifier for this spell.

Inner Eye

At 17th level, you have perfected the use of your inner eye. While you are blinded you gain the following benefits:

• Your Greater Reflexes feature increases to two attacks per trigger. You can instead use an extra Ki point to make an additional third attack.
• You cannot be surprised while you are conscious.
• You gain Truesight equal to half of your Blindsight.
• You gain Another Reaction (3 total). You can use this reaction only on your Greater Reflexes feature and any other feature that does not involve Casting a spell or increasing your AC.