The individual soul is forever a servant of the Supersoul and therefore, his reletionship with the Supersoul is to offer service. That is called Bhakti-Yoga or Bhakti-bhaava.
By giving everything to the cause of the Lord, one does not lose anything, but he gains everything that he could never otherwise expect.
Srimad Bhagavatam 2.7.17,
The Greatest Welfare Activity for All the people of this World.
One should avoid prajalpa, talking of mundane subject matter, unrelated to devotional service.