Here is the full list of all 23 Mind: Path to Thalamus Enhanced Edition achievements.
Unlock the secret ending.
Face your memories.
Turn all four mirrors to get to Sophia.
Discover the meaning of the picture in the hall.
Ignore him and avoid the confrontation.
Access the Skyscraper.
At the last confrontation, avoid the Evil Balls of Death.
Defeat the Colossus.
Avoid the cani knowledge.
Finish the second level at the woods in less than 60 seconds.
Find the remains of the closet in the forest
Discover Rain.
Discover Time.
Worship the sacred jam at the rocks.
Go through the whole "Badlands 2" level at night.
Do maths as a really good spanish singuer did.
Glimpse the Thalamus for the first time.
Find the remains of the bed in the cave
Throw the ball in the cave and cry with it's delicious sound.
Discover Night.
Finish the level at the shallow sea with 4 mirrors under 90 seconds.
Discover Fog.
Spot the magic flying cow.