Knowledge

indifference to the objects of sense.Self effacement and perception of the evil of birth,death,old age,sickness,and pain.--8 solaka
indriyarthesu vairagyam,
anahamkara eva ca,
anmamrtyujaravyadhi
duhkhadosanudarsanam.--8 solaka
The meaning of this solaka is to live in this world but do not remain attached to the world.we should live a ego less life.The meaning of ego is that we do not know that we are separate from these visible elements such as body,mind,sense organs.we becomes one with these elements of field and do not know that we are knower of the field.If we becomes shakshi[witness] of these elements,than we will remain separate from the field.that is why j.krishanamurti used to say that observe every time to your mind,body,and activities.thus we can realize that blissful state,which is beyond these natural things[Field].j.said,"very observation is action".
But in vadanta we should practice for to separate real[knower of the field]and field.that is called vivakha.