If a guest is welcomed, Agni is gratified. If he is offered a seat, Indra is gratified. If his feet are washed, it is the Pitris who are delighted. If he is fed, it is Prajapati (Brahma) himself who is gratified.
स्वागतेनाग्नयस्तृप्ता आसनेन शतक्रतुः। पितरः पादशौचेन अन्नाद्येन प्रजापतिः॥