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.
Ignore him and avoid the confrontation.
Discover the meaning of the picture in the hall.
Access the Skyscraper.
At the last confrontation, avoid the Evil Balls of Death.
Defeat the Colossus.
Worship the sacred jam at the rocks.
Avoid the cani knowledge.
Finish the second level at the woods in less than 60 seconds.
Discover Time.
Find the remains of the closet in the forest
Go through the whole "Badlands 2" level at night.
Discover Rain.
Do maths as a really good spanish singuer did.
Glimpse the Thalamus for the first time.
Throw the ball in the cave and cry with it's delicious sound.
Finish the level at the shallow sea with 4 mirrors under 90 seconds.
Spot the magic flying cow.
Find the remains of the bed in the cave
Discover Night.
Discover Fog.