5

As long as there are impressions of objects in the mind, so long the enquiry 

‘Who am I?’ is required. 

As thoughts arise they should be destroyed then and there in the very place of their origin through enquiry. 

If one resorts to contemplation of the Self unintermittently, until the Self is gained, that alone  would do. 

As long as there are enemies within the fortress,

they will continue to sally forth; 

if they are destroyed as they  emerge, 

the fortress will fall into our hands.

~ The Collected Works of Sri Ramana Maharshi. Chapter: Who am I?