It's the nature of the mind to drift away. The mind is like the Pacific Ocean, it waves. And mindfulness has been shown to drop underneath the waves. If you drop underneath the agitation in the mind, into your breath deep enough calmness, gentle undulations.
Jon Kabat-ZinnWe call the effort to cultivate our ability to be in the present moment โpracticeโ or โmeditation practice.โ
Jon Kabat-ZinnAllow your attention to gently alight on your belly, as if you were coming upon a shy animal sunning itself on a tree stump in a clearing in the forest. Feel your belly rise or expand gently on the inbreath, and fall or recede on the outbreath.
Jon Kabat-Zinn