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