Tommy: Do you think that I should begin with a more concrete practice such as “following the breath” or yoga in order to develop more clarity and presence in order to carry out these more subtle practices/explorations?
Rupert No. You are already Presence. You cannot develop that. It is your birthright. It is You. As regards more clarity, what will help is simple looking and simple seeing.
If you are feeling depressed do whatever is necessary in your case to bring yourself to a more neutral place. Be gentle with yourself. Go for a walk. See a friend….whatever helps you.
When you are feeling stable enquire into your true nature and see that you are this Knowing Presence that is experiencing whatever appearances of the mind, body and world are present. Be that knowingly. Rest as that. Be very loving, as this Presence, with all appearances, especially your own feelings of resistance. Be yourself and allow them to be.