Often times, when things go sour in a relationship or if a loved one dies suddenly, we need what is called closure. Closure is sort of a mental appeasement where the aggrieved has some final goodbyes before the curtain is drawn. In tragic deaths such as the Malaysian airline crash recently, friends and relatives did not have that final goodbyes or the knowledge about the final times of the deceased. This lack of closure can cause intense pain and agony. When we lose someone in a tragic death in an untimely manner, it is very hard to move forward.
In Krishna consciousness, we are trained to practice closure at all times. In other words, we are mentally exposed to the idea of the temporary nature of this world. The fact that something will close at any moment (padam padam yad vipadam na tesham) is a fact of life and not a surprise. Closure is simply a matter of "when" and not "if". One may argue this is a morbid or pessimistic approach to life but actually this is reality or truth. In fact the insurance companies and other emergency service industries work on this model - to always be alert for the inevitable.
Similarly, Krishna urges all of us to be alert to this danger of transience. In this transitory mood, we will naturally cultivate inner detachment and equanimity of mind and when disaster thus presents itself, we are mentally equipped to do the needful and move on!