When you walk there is no need to do anything special. Simply walk and see what is there. No need to cling to isolation or seclusion. Wherever you are, know yourself by being natural and watching. If doubts arise, watch them come and go. It's very simple. Hold on to nothing. It's as though you are walking down a road. Periodically you will run into obstacles.
When you meet defilements, just see them and overcome them by letting them go. Don't think about the obstacles you've already passed; don't worry about those you have not yet seen. Stick to the present. Don't be concerned about the length of the road or the destination.
Everything is changing. Whatever you pass, don't cling to it. Eventually the mind will reach its natural balance where practice is automatic. All things will come and go of themselves.” `
Ajahn Chah, A Still Forest Pool: The Insight Meditation of Achaan Chah