Overthinking can be overcome by seeing that we are in fact aware of all the thoughts going on, but we are not the one overthinking per-se. Even the thought ‘I am overthinking’ is a thought. We can watch all the thoughts coming, and realise a lot of thoughts are coming, but none of them are actually us, or the true self. The Mind wants to always identify and grip to something, yet in truth we are the boundlessness of everything.