The Lord and His residential abode will always remain a myth or a mysterious problem, but for the devotees the Lord will always be available as an associate

Expressions researched:
"the Lord and His residential abode will always remain a myth or a mysterious problem, but for the devotees the Lord will always be available as an associate"

Srimad-Bhagavatam

SB Canto 2

The mundaners have insufficient information of even the mundane sky, so what can they think of the spiritual sky? Therefore the mundaners are always far, far away from Him. Even if in the future they are able to manufacture some machine whose speed may be accelerated to the velocity of the wind or mind, the mundaners will still be unable to imagine reaching the planets in the spiritual sky. So the Lord and His residential abode will always remain a myth or a mysterious problem, but for the devotees the Lord will always be available as an associate.

SB 2.4.14, Translation and Purport

Let me offer my respectful obeisances unto Him who is the associate of the members of the Yadu dynasty and who is always a problem for the nondevotees. He is the supreme enjoyer of both the material and spiritual worlds, yet He enjoys His own abode in the spiritual sky. There is no one equal to Him because His transcendental opulence is immeasurable.

There are two sides of the transcendental manifestations of the Supreme Lord, Śrī Kṛṣṇa. For the pure devotees He is the constant companion, as in the case of His becoming one of the family members of the Yadu dynasty, or His becoming the friend of Arjuna, or His becoming the associate neighbor of the inhabitants of Vṛndāvana, as the son of Nanda-Yaśodā, the friend of Sudāmā, Śrīdāmā and Madhumaṅgala, or the lover of the damsels of Vrajabhūmi, etc.