Is it that once soul is liberated, it is always liberated and goes back to God in the upper world?

[Smt. Priyanka asked: In the case of liberated souls, they have attained mokṣa due to the grace of God and have close association with God in the upper worlds as well. They are free from the cycle of births and deaths based on their karma. Having said that, when they are born again along with God, are they still prone to committing sins and accumulating merits and demerits for their actions and fall back into the cycle of Karma? Or is it that once liberated, they are always liberated and go back to God in the upper world after their purpose is done on Earth?]

Swāmi Replied:- Once a soul is liberated from the worldly bonds, it will not be entangled by the worldly bonds again. The reason for this point is that the soul got salvation from worldly bonds based on tasting the bond with God. If the soul is liberated from the worldly bonds without tasting the love of the bond with God, certainly the soul will be entangled by the worldly bonds again. If your detachment from the worldly drinks is based on your tasting the divine nectar, you will not again get attracted by the worldly drinks. If you are detached from the worldly drinks without tasting the divine nectar, you are sure to get entangled with the worldly drinks once again and this time the entanglement is very very deep! You shall not decide the success of Spiritual effort based on mere detachment from the worldly bonds, but, you shall decide the success based on your attachment to the bond of God. Salvation means simply liberation from the worldly bonds and this will not decide the success. Union with God (Sāyujya or Yoga) decides everything. Your effort must be always to attach yourself to God more and more and you shall not even think about your detachment from the worldly bonds. Detachment from worldly bonds is a spontaneous by-product of the attachment to the bond of God.