SB 2.6.19

pādeṣu sarva-bhūtāni
 puṁsaḥ sthiti-pado viduḥ
amṛtaṁ kṣemam abhayaṁ
 tri-mūrdhno ’dhāyi mūrdhasu
Synonyms: 
pādeṣu — in the one fourth; sarva — all; bhūtāni — living entities; puṁsaḥ — of the Supreme Person; sthiti-padaḥ — the reservoir of all material opulence; viduḥ — you should know; amṛtam — deathlessness; kṣemam — all happiness, free from the anxiety of old age, diseases, etc; abhayam — fearlessness; tri-mūrdhnaḥ — beyond the three higher planetary systems; adhāyi — exist; mūrdhasu — beyond the material coverings.
Translation: 
The Supreme Personality of Godhead is to be known as the supreme reservoir of all material opulences by the one fourth of His energy in which all the living entities exist. Deathlessness, fearlessness and freedom from the anxieties of old age and disease exist in the kingdom of God, which is beyond the three higher planetary systems and beyond the material coverings.
Purport: 

Out of the total manifestations of the sandhinī energy of the Lord, one fourth is displayed in the material world, and three fourths are displayed in the spiritual world. The Lord’s energy is divided into three component parts, namely sandhinī, saṁvit and hlādinī; in other words, He is the full manifestation of existence, knowledge and bliss. In the material world such a sense of existence, knowledge and pleasure is meagerly exhibited, and all living entities, who are minute parts and parcels of the Lord, are eligible to relish such consciousness of existence, knowledge and bliss very minutely in the liberated stage, whereas in the conditioned stage of material existence they can hardly appreciate what is the factual, existential, cognizable and pure happiness of life. The liberated souls, who exist in far greater numerical strength than those souls in the material world, can factually experience the potency of the above-mentioned sandhinī, saṁvit and hlādinī energies of the Lord in the matter of deathlessness, fearlessness and freedom from old age and disease.

In the material world, the planetary systems are arranged in three spheres, called triloka, or Svarga, Martya and Pātāla, and all of them constitute only one fourth of the total sandhinī energy. Beyond that is the spiritual sky where the Vaikuṇṭha planets exist beyond the coverings of seven material strata. In none of the triloka planetary systems can one experience the status of immortality, full knowledge and full bliss. The upper three planetary systems are called sāttvika planets because they provide facilities for a long duration of life and relative freedom from disease and old age, as well as a sense of fearlessness. The great sages and saints are promoted beyond the heavenly planets to Maharloka, but that also is not the place of complete fearlessness because at the end of one kalpa the Maharloka is annihilated and the inhabitants have to transport themselves to still higher planets. Yet even on these planets no one is immune to death. There may be a comparative extension of life, expansion of knowledge and sense of full bliss, but factual deathlessness, fearlessness and freedom from old age, diseases, etc., are possible only beyond the material spheres of the coverings of the material sky. Such things are situated on the head (adhāyi mūrdhasu).