Material hankerings
Srimad-Bhagavatam
SB Canto 1
SB 1.2.20, Purport:
No ordinary man, or even one who has attained success in human life, can know scientifically or perfectly the Personality of Godhead. Perfection of human life is attained when one can understand that he is not the product of matter but is in fact spirit. And as soon as one understands that he has nothing to do with matter, he at once ceases his material hankerings and becomes enlivened as a spiritual being. This attainment of success is possible when one is above the modes of passion and ignorance, or, in other words, when one is actually a brāhmaṇa by qualification.