Control your Mind Man's mind influences his body profoundly. The mind has just as much potential to be a medication as it has to be a poison. When the mind is viscious, it can kill a being but when it is steady and diligent, it can benefit others.
When the mind is concentrated on right thoughts, and supported by right effort and understanding, the effect it produces is immense.
A mind with pure and wholesome thoughts leads to healthy, relaxed living.
The buddha said, "No enemy can harm one as much as one's own thoughts of craving, thoughts of hate, thoughts of jealousy and so on."
A man, who does not know how to adjust his mind according to circumstances, is almost a dead man. Turn your mind inwards, and try to find pleasure within yourself.
from :How to overcome your difficulties by Ven.Dr.K.Sri.Dhammananda