Nitya muktas they don’t know what is suffering because they are eternally mukta. They all serving the Supreme Lord in different way and in indifferent chambers. But bonded Jivas are conditioned souls, so they have to suffer so much according to their respective karma phal. So now the Question coming that –“ Is there any partiality with Krsna regarding this matter? ” Many can come up with this argument that maybe Krsna is favorable for some groups whereas for others he is not at all favorable. But from Srimad Bhagavad Gita ( 5.15 ) we can find that Sri Krsna speaking in front of Arjuna the following–
nādatte kasyacit pāpaṁ
na caiva sukṛtaṁ vibhuḥ
ajñānenāvṛtaṁ jñānaṁ
tena muhyanti jantavaḥ
The Supreme Lord does not accept anyone´s sinful or pious reactions. Ignorance covers the inherent true knowledge of the living entities and bewilders them.
Some jivas are eternal mukta , they don’t know anything about suffering , and others are bound with the rope of material bondage. So how to reconcile ? Baladev Parbhu can engage those jivattmas according to their karma phal, so no partiality can be there. We can take one example to understand the following point. Different ingredients of food going to produce different kinds of protein, vitamin, minerals, fat or carbo hydrate etc. inside our body to give full nourishment to our physical body. But if the body now going to start agitation on this issue that—Why should I take trouble to digest bitter things, no I can not, only I can digest sweet things like sweet ball, sweet rice etc. then it is no point to speak like that because this is the arrangement of Supreme Lord, we have no right to go against Him. Similarly we should think that this is one kind of sweet playing of the supreme Lord without any external reason. Children are playing in two groups, is there any profit and lost feeling inside them, not at all. Only to get enjoyment they are playing, similarly supreme Lord ,His svarup is Ananda Moy, so anything He is doing there can not be any self-interest.
Gaura Hari Haribol