Srimad Bhagavatam Canto 02, Chapter 06, Text 04

SB 2.6.4

tad-gatram vastu-saranam
saubhagasya ca bhajanam
tvag asya sparsa-vayos ca
sarva-medhasya caiva hi
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
His bodily surface is the breeding ground for the active principles of everything and for all kinds of auspicious opportunities. His skin, like the moving air, is the generating center for all kinds of sense of touch and is the place for performing all kinds of sacrifice.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The air is the moving agent of all the planets, and as such, the generating centers for promotion to the deserving planets, the sacrifices, are His bodily surface and are naturally the origin of all auspicious opportunities.
Srimad Bhagavatam Canto 02, Chapter 06, Text 03
Srimad Bhagavatam Canto 02, Chapter 06, Text 05