चमकम् CHAMAKAM

अग्नाविष्णू सजोषसेमा वर्धन्तु वां गिरः ।
द्युम्नैर्वाजेभिरागतम् ॥

Kalpam: After chanting the mantra अग्नाविष्णू and performing homam four times with ghee, one should then perform homam in continuous flow, chanting the mantras from वाजश्चमे upto the eleventh Anuvakam at the same time. Here from वाजश्चमे upto the eleventh Anuvakam it is a single mantra. The division into eleven Anuvakams has been done for the purpose of using each Anuvakam as one mantra in karmas like Parayanam, other than Homam. This अग्नाविष्णू mantra alone must be chanted for Chaturgrihita Homam.

Meaning:

हे अग्नाविष्णू- O Devas Agni and Vishnu! सजोषसा- (Both of you) be kind in the same manner. वां- Spoken about you, इमा गिरः- these words of praise, वर्धन्तु- may grow. द्युम्नैः- With materials (like gold, silver etc.), वाजेभिः- and food items, आगतम्- please come.

Explanation:

While calling upon two Devas, both of them should have the same extent of kindness. If there is difference they will not come forward to bestow fruits together. Hence it is prayed first that both should be kind to us to the same extent. This is followed by prayer that we should also praise you very well and you should come and give us materials and foods.