Ravana cannot be killed .....

The battle between Good and evil is going on for immemorial time...

God's themselves have come on this planet according to Hindu mythology and killed demons 

Celebration on Dashera is one such victory of good over evil 

Prabhu Shree Rama in his human avatar has killed Ravana the demon and its celebrated as Dashera for so many years in India ...

The fact of the matter is that even after killing Ravana there were and are Ravanas (demons) in every age since the ages or Rama and Ravana

If Ravana would have been a body then he would have been already dead when Shree Rama killed him.

But Ravana is a potential trait in human beings and hence it cannot be killed .

It can be understood,  sedated , kept under control by not giving attention to it and not allowing it to blossom 

Ravana is a symbol of potential evil trait in life and it completes us 

Ravana is a potential threat , its the darkness which gives meaning to the goodness and light in life 

Ravana cannot be killed it will always coexist as a possibility in us keeping us in balance 

Ravana cannot be killed once for all and then we can live happily ever after 

Ravana is always alive and ready to crop up at anytime 

Ravana can be dormant for immemorial time 

Ravana is within all of us and we see a glimpse every now and then of him , when we get angry , jealous , hateful , lustful , egoistic etc 

Since most of us are able to keep a check on Ravana inside us he doesn't become a demonic threat to ourselves and society around us 

But those who are unable to control and instead give more air to Ravana inside them they manifest the potential and display traits to society and pose a danger to everyone around them 

Hence I say Ravana have to be kept under control and prevented from fulfilling itself as a potential trait into personality every single second of our life .

Ravana will live till Rama wants to live peacefully 

Rama can live peacefully only when he keeps Ravana under control for ever by constantly preventing its any head to crop up and create havoc for society 

Ravana cannot be killed but can be controlled....