Pressure vs Tension

It seems that both Pressure and Tension are the same.. Infact they are opposite.. Pressure come from outside.. but Tension is mainly internal to u..

Example:
Take out one string of a Guitar or any string available.
Fix its one end and the pull it towards you.
The tension in the string is opposite to the direction of the force applied.
The direction of force(Pull) is towards you. But the tension in the string is away from you..

For example in real time, lets take sachin tendulkar..
every time he comes out to bat, he is under tremendous pressure.. expectations of crores of people.. they expect him hitting centuries.. breaking/setting records.. but he is not tensed and performs.. playing and living in the present moment. the rest is history..

External world can put you under pressure. But it can not make you tensed.. You can feel the pressure and can apply its heat to yourself. This makes you tensed.. Your body reacts.. it exerts some hormones.. Your status is then changed from 'under pressure' to 'tensed'.. Nobody can be blamed for this.. only you are responsible..