Double income

A brahmin means one who earns double income.One of imperishable wealth(pure karmas) ,other of  material wealth

 Karmic energy exchange with pure Brahmins is the easiest way to earn double income

Immediate fruit of pure actions done by Brahmins is the pure food to eat ,pure land to live in ,pure water to drink and bath and fresh air to breath in. 

Any Worldly income that is not fetching souls basic needs has no use if accumulated compromising it's birth right of pure Satvik  living .

Material wealth is converted into blessings by putting it into use where there are pure and charitable actions done by pure Brahmins.

 Return from blessings though  incognito and invisible but is the only thing that supports life 's existence that is pure and makes one God's true heir of his unlimited inheritance.