If you talk to Gurū, you infinitely enjoy – this is perfect āhārā. Here, by talking to Gurū, I mean you can talk to Krishnā or any of the 1) Vrajavasīs, 2) Māyāpūrvāsīs, 3) Ayodhyāvāsīs, 4) Purīvāsīs or any of the 5) catur vyūhās. This is seen as piety in bhakti as you are using Krishnā’s resources understanding that they are His prasād.
If you talk to Vishnū, you infinitely work – this is perfect bhayā. Here, by talking to Vishnū, I mean you can talk to any Vaikuntavāsī like any vishnū tattva or avatārā of Krishnā who don’t fit into the five people specified above as Gurū and also Mother Lakshmī, Mother Sarasvatī, Mother Tulasī and Mother Gangā as they can also act as Vaikuntavāsīs. This is seen as service in bhakti as you are working for Krishnā’s pleasure.
If you talk to Zambhū, you numb out – this is perfect maithunā. Here, by talking to Zambhū, I mean talking to Zivā or Pārvatī. This is seen as sin in bhakti as your misusing resources that are meant for Krishnā’s pleasure, e.g. offering bhogā to Shivā and making the food tasteless and thus approaching the non-enjoying form of Krishnā.
If you talk to Dhenū, you rest off – this is perfect nidrā. Here, by talking to Dhenū, I mean talking to Durgā or any of the dasa mahā vidyās. This is seen as offence in bhakti as your wasting time that is meant for Krishnā’s pleasure.
Nanda Mahārājā's Palace 