Acrylics, a wall-size canvas and you.
The best way to let the “I” disappear is not through austerities and discipline - no. It is through creativity and play. Become absorbed in the process of creation and you are no longer there, not as an ego. You become attuned with nature. Perfection takes you and you disappear. With no motivation, no search for rewards or recognition, you are absolutely fulfilled.
Get the knack in this process, and it will - effortlessly - change your life.