The mind is far more than many believe it to be.
The analogy of an iceberg is appropriate.
The original meaning of the word 'mind' was simply 'the capacity of memory'.
Then, from the 14th century, the definition gradually began to evolve - and the concept of mind is now considered to include its totality, both conscious and unconscious, and the human faculties of perception, feeling, imagination, visualisation, memory, will, and of course thinking.
So, in summary, the mind is primarily the seat of consciousness in the human, plus the totality of all conscious and unconscious mental phenomena.