छन्दः पादौ तु वेदस्य हस्तौ कल्पोऽथ पठ्यते
ज्योतिषामयनं चक्षुर्निरुक्तं श्रोत्रमुच्यते।
शिक्षा घ्राणं तु वेदस्य मुखं व्याकरणं स्मृतम्
तस्मात्सांगमधीत्यैव ब्रह्मलोके महीयते॥
The 6 vedānga-s are indispensable in the study of veda-s, so much so, that they are imagined as being limbs of the vedapurusha.
The above shloka says, chhanda is the feet, kalpa is the hands, jyotisha is the eyes, nirukta is the ears, shiksha is the nose and vyākarana is the face of the vedapurusha.
Kalpa covers shrauta, grhya and dharma sutra-s, which define how every moment of a vaidika’s life must be spent. Hence, a revival of this vedānga essentially means revival of the vaidika way of life, itself. The shrauta sutra-s lay out how the yajna-s as mentioned in the shruti, the veda-s, must be performed. The grhya sutra-s explain how to perform the rites relating to one’s family and the dharma sutra-s detail about the varnāshrama dharma.
Kalpa is the ultimate culmination and utilisation of studying all other vedānga-s. You need to know shikshā to chant mantra-s, nirukta to know applicability of the mantra-s, vyākarana to do Uha as per the ritual in progress, jyotisha to know when and where to do the particular ritual and chhanda to know the correct meter, among other purposes.
While dakshina bhārata still retains the tradition and actual practitioners of the shrauta yajna-s to a good extent, uttara bhārata, the land which is purified by the waters of sarasvati-ganga-yamuna, has lost the great culture it was once known for. Our effort is to aim for resurrection of this basic and yet most important part of our dharma, without which, no true reclamation of our past can ever be possible, nor can the dharma continue into future.
For this, we have been supporting some promising shukla yajurveda shrauta students/practitioners and rgvediya shānkhayana shrauta students. We hold ishti-s/yaga-s in uttara bhārata from time to time to encourage the remaining handful practitioners.