I was writing this morning and it occurred to me that if you can manage not to get attached to your thoughts, and instead can just let them come and go, you will have achieved almost total detachment. The reason thoughts are so fascinating is because your thoughts contain everything you ever experienced or imagined. It is the sum total of your personal samsara.
But understanding that thoughts are not really wholesome, that they are something to be handled with care and caution and a measure of distaste, like a dangerous snake, can help you keep your distance. You may note when you start doing this a tendency for attention to get caught up in clicks and movements within the body.