The body of the Brahmana is the divine field. By penance, it is purified. Then again, by pleasing the Brahmana, one pleases the celestials.
क्षेत्रं हि दैवतमिदं ब्राह्मणान् समुपाश्रितम्। अमलो ह्येष तपसा प्रीतः प्रीणाति देवताः॥