Sentence:  Into the texture of this tapestry of history and human drama Henrietta , as every artist delights to do , wove strands of her own intuitive insights into human <WSD>nature</WSD> and - especially in the remarkable story of the attraction and conflict between two so disparate and fervent characters as this pair - into the relations of men and women : `` In their relations , she was the giver and he the receiver , nay the demander . 
Meaning of the word marked with <WSD> tags:  the essential qualities or characteristics by which something is recognized