Ashvamedha Yajna (अश्वमेधयज्ञः)

One of the most confusing aspects of yagna to the modernist is horse sacrifice,(ashwamedha yagna) cow sacrifice( go medha yagna) and human sacrifice( purusha medha yagna).  When seen from superficial point of view and the western indologist point of view, it sounds that the followers of sanatana dharma brutally killed animals in the name of yagna.   but understanding these yagna's for the Rishis gives complete understanding and freed from confusion.

 In Taittiriya Brahmana's Ashwamedha prashna, Ashwamedha is the Yajna that helps Rashtramshwamedhah, (nation-building). This kind of Yajna calls for great atma-samarpana. The horse of the Yagna symbolises every aspect of the King, his prosperity, his power. It is this aspect of Rajatva (kinghood) that helps the Rashtra to prosper.   Thus, it is this dedication of the King and the citizens that make RashtraVardhana (nation-building) possible.  

The "Ashwo vai prajapatih" (Horse Yajna) is done with the motive of bringing all people together.  

         "Sanghranyeshwayajate!Imagam janatagam sangrahnaniti.”

The Yajnas rooted in the Vedas have profound meaning at all levels (collective, social, personal) and in all aspects ranging from naimittika Karma to Nitya Karma till Mukti. The Yajurveda terms the fight we undertake for our protection as Dharmic war. Kurukshetra becomes the field of yajna and devatas made Vishnu into the Yajna. From that Vishnu’s left hand, the bow appears and from the right, arrows. The Taittiriya aranyaka says this:

This is the kshatra Yajna (Kshatriya sacrifice). The bow itself became AUM, the atma became shara (arrow), Brahman was the destination and when the arrow (atma) becomes one in consciousness of devotion then Moksha (liberation) is experienced. This is elaborated in the MundakaShruti.

it is undeniable fact that no civilization has flourished without the power of warrior class, of course when warrior class become only brutal  then they are less than terrorist.   Warrior is not one who knows how to take some one else's life alone, that is last resort he applied for protection of his country or culture.  but kshatriya means who is meant to protect.  kshata means pain or danger and tra and one who frees. Therefore kshatriya means one who frees others from diffiuclty.  Sri Rama told mother Sita in Ramayana about how is bow stands up hearintg the plea of afflicted.  Therefore, horse sacrifice denotes and symbolizes the dedication of kshatriya or a dharmik king or a soldier for a dharmik cause.  horse and kshatriya are synonimous, they symbolize power and prepared for protection.  protection does not happen without solidres sacrificing their life and [protection does not happen without using weapon judiciously.  All the devatas in the Dharmik traiditon told weapons weather be it Shiva or Vishnu, even Devis are not excpetion to this rule.  Abrhamic faith may claim that jesus did not use weapons, he forgave all but it not secret that christianity spread with sword and strength. 

We will find lot of explanaion in mahabharata and Ramayana about different horse sacrifices. 

The Yagna being smaller than the smallest and greater than greatest is all-pervading and incomparable. Even the relationship between man and woman has been described as Yajna. In the modern world, the relationship between men and women has been reduced to physical attraction. Therefore to see the relationship between man and woman as the Yajna principle, it is important to have a Vedic Darshan (perspective). From the perspective of Sruti, everything is pure and is Yajna. One who opposes the principle of Yajna is adharmic as they oppose the process of creation, maintenance and destruction as described in the Vedas. Gita enunciates the Sattvic person’s vision from the Vedic perspective.  

Brahmarpanam brahma havih! Brahmagnau brahmana hutam

Brahmaiva ten gantavya brahma karma samadhina (Gita 4-24)

Brahman is offering, brahman is oblation, brahman is the havissu (the sanctified Prasadam). Brahman is Agni, the performer is the Purusha and the results reach the Brahman, this process is termed brahma karma samadhi of  Karmayoga. This is how the Yagna becomes the foundation for Vedanta Darshan.