Some people can be very dangerous. Bruce Lee was one such a man.
Yes, that's what I'm speaking about, after having read the picture posted by you.
Defeat is a state of mind = mental state, a quality of our ego and the causal body
No one is ever defeated until defeat has been accepted as a reality= the sould in unvincible, cannot be defeated. Once we accept defeat we identify with the material body and loose the powers deriving from the awareness of the soul
Bruce Lee was an example of successful manipulation of mental states, specifically unvincibility. He was able to achieve the same effect of meth without the negative, destructive effects. Such a mental state was reinforced by his actual invincibility in martial art and streetfighting events, creating a resonant loop.
There heve been rumours of use of Marijuana in his latest years, but they are not confirmed by official sources.