Bhagavatapurana 2.6.5

2.6.5

keśaśmaśrunakhānyasya śilālohābhravidyutām /
bāhavo lokapālānāṃ prāyaśaḥ kṣemakarmaṇām //

5. His hairs (on the body) are the root of the Vegetable Kingdom, *i. e.*, of all the trees and plants by which materials for sacrifices are furnished; His hairs, beards and nails are the source of rocks, iron, clouds and lightning.

6. His arms form the birth-place of the deities presiding over (the eight) quarters, whose duty is mostly to protect (the world); His footstep is (His paces are) the stay of the three Lokas—Bhur, Bhuvar and Svar, and the resort for security and protection.