Just observer of the modes.

vadasinavad asino,gunair yo na vicalyate.
guna vartant ity eva,yo vatishthati ne ngate.-23

He is seated unconcerned,unpertubed by the modes.he stands apart without wavering,for he knows that these are only modes that are act.--23
This stage is highest form.he abids only in the self,mind remains in samadhi.In this stage experiences of pain and pleasure do not exist.the meaning of this solaka is he remains in shasi-bhava everytime.this is why he manifests blissful stage where there are not exists name and forms,that is why he do not touches pain and pleasure.in this stage due to peace in his mind everything in outer world becomes so beautiful.
This is like as we see two parties quarelling in a street and you are watching from the roof.they are fighting and abousing but it does not touches to you.but this practice should be performed in our activties midest of the world,in market in your work,any body insults you and you will remain in self observing in every circumstances.