Actually, the ability to choose presence depends on the degree of presence that's emerging in you. Ultimately, you are not choosing, there's nobody there to choose. When you think you are choosing, presence is simply emerging in that moment.
Eckhart TolleFor many years I had been deeply identified with thinking and the painful, heavy emotions that had accumulated inside. My thought activity was mostly negative, and my sense of identity was also mostly negative, although I tried hard to prove to myself and to the world that I was good enough by working very hard academically. But even after I had achieved academic success, I was happy for two weeks or three and then the depression and anxiety came back.
Eckhart TolleThe thinking mind is a useful and powerful tool, but it is also very limiting when it takes over your life completely, when you don't realize that it is only a small aspect of the consciousness that you are.
Eckhart Tolle