Brilliant mentioning of Shree Goloka-Siddhanta from "Shree Brihad-Brahma-Samhita".
The Verse from "Shree Brihad-Brahma-Samhita" is 3.2.52 - गोलोके रमते दिव्ये नित्यमेव हरिःस्वयं - goloke ramate divye nityameva hariHsvayaM
The idea behind this Verse is the following: "Bhagavan Shree Hari eternally Enjoys in Shree Goloka-Dhama because of His Svatantra-Krida".
"Krida" is the crucial concept here, see all the explanations of OM VishnuPad VallabhAcharya regarding Shree Krishna-Leelas or Siddhanta of Shree Ramanuja-Sampradaya regarding "Nitya-Vibhuti".
The cite is from the following Hindi Grantha - "Vaishnava-PanchaRatra-Agama", Katipaya Paksha by Dr. Ram Pyare Mishra:
Reference to the Verse 3.2.52: