Is meditation concentrating on tip of nose or centre of forehead?
Meditation is not concentration. Meditation is the simple art of doing absolutely nothing, not even thinking, so you don’t concentrate but you de-concentrate. If you are asked to concentrate on something, just a gentle attention works. Effortlessness is the key. Using the breath as a tool, bringing the mind to a standstill state is possible. You just let meditation happen effortlessly.