If you use your mind to study reality, you won't understand either your mind or reality. If you study reality without using your mind, you'll understand both.
The greatest investment a young person can make is in their own education, in their own mind. Because money comes and goes. Relationships come and go. But what you learn once stays with you forever.
The mind may be reluctant to think properly when thinking is all it is supposed to do; the task can be as paralysing as having to tell a joke or mimic an accent on demand.
In our daily life a certain way of thinking makes us happy, and a certain way of thinking makes us unhappy. In other words, there are certain states of mind which bring us problems, and they can be removed.
This moment in which you experience stillness is every moment. Don't let the mind seduce you into the past or future. Stay in the moment, and dare to consider that you can be free now.