It depends, we are all different individuals. There are those who remember every single word, there are those who are a bit confused about what has been said and then there are those who forget everything, but it is very rare.
The feeling you may have when you are in a trance is a bit like that of sleepiness, or hypnagogic state, or just sleeping. It is a bit like when you meditate, the gaze is turned inwards but the perceptions are amplified, there is concentration, but you do not sleep; And if there is a need to open our eyes, our perfect mind alerts us and awakens, leaving us with a feeling of being rested.