There is a buddhist school that assert the mind can see itself.
However this Buddhist school is rejected by another Buddhist school with this reason.
Just like your own eyes cannot see itself, it is impossible for the mind to see itself.
If we see the flame on the candle, it is the nature of the flame to illuminate.
However, that illumination is not illuminate by itself. It is because of candle and so many other causes that at that instant there is an illumination. It is impossible for the fire to illuminate itself.
Similarly, it is impossible for the mind to cognize itself. Cognizance or knowing is the direct result.
As long that cause and condition is there, as long as that as well, this knowing or cognizance will continue.
However, this continuity should not deceive you to form the idea of mind.
This is because at each moment the cognizance comes from different cause and condition.
The illumination of fire is the result of so many causes and conditions. The illumination doesn't come from illumination itself.
Similarly, the knowing or the cognizance is also the result of so many causes and conditions. But not from the knowing or cognizance itself.
The present cognizance has to come from previous cognizance, which are the result from so many causes and conditions
Again, it is important to note here that the previous cognizance should not be seen as same with the present cognizant. Because if we do that, it can deceive you to assert there is mind - which at serious level become the atman.
It is the nature of particular cause and condition that yield cognizance or knowing.
It is also the nature of particular cause and condition that make illumination of fire.
Because this cause and condition always continue, it is easy to have a mistake that it is mind that see the mind. However, this is just impossible. Just like the eye cannot see the eye.
There is no such thing like something watching itself. It just can't happen. Sword cannot cut itself.
It is the nature of cause and condition that yield the result of cognizance.
It is not that cause and condition yield mind then mind see itself. This position is absurd.
It is straight away cause and condition yield cognizance. So cognizance is directly the result.
If I go a litle bit out - this is actually how the meditation of bare meditation work.
Just cognizes at every moment.
If at that moment, you can see mind - you are already out.
I am not here nor there.
I am not right nor wrong.
I do not exist neither non-exist.
I am not I nor non-I.
I am not in samsara nor nirvana.
To All Buddhas, I bow down for the teaching of emptiness. Thank You!