A person who is endowed with the quality of goodness ( Sattva ) in abundance, becomes kind-hearted towards all beings, firm or steady in his attitude, courageous, straightforward and devoted to Brāhmaṇas and Gods; one in whom the quality of passion or intense activity ( Rajas ) predominates, is greatly interested in poetry or literature, fine arts, sacrifices and women ( sex ), and is very heroic; and one in whom the quality of darkness or ignorance ( Tamas ) is predominant, is deceitful, foolish, lazy, hot-tempered and addicted to sleeping. People of mixed characteristics are born as a result of the intermingling of these three qualities. With the varieties of the Mixed persons there are altogether 7 categories ( i.e ., four categories of the Mixed and three of unmixed nature).