All the demigods are material representations of the Supreme Lord

As long as one is in the modes of material nature and is performing

the duties prescribed in the scriptures, he can be elevated to higher

planetary systems, where the predominating deities are material

representations of the Supreme Personality of Godhead, like the sun-god,

the moon-god, the air-god, Brahma and Lord Siva. All the different

demigods are material representations of the Supreme Lord. By material

activities one can approach only such demigods, as stated in Bhagavadgita

(9.25). Yanti deva-vrata devan: those who are attached to the

demigods and who perform the prescribed duties can approach the abodes of

the demigods.

Srimad Bhagavatam 3.32.36 purport