Who are the seven mother?

There are seven mothers according to VEDAS:

atma-mata guru patni 

brähmani raja-patnika 

dhenur dhätré tathä prithvi 

saptaita matarah smrtah 

1. Atma-mata -Real mother, from whose womb we have come to this world 

2. Guru patni- wife of the teacher or spiritual master. 

3. Brahmani- the wife of a brahamana 

4. Raja-patnika- the wife of the king, or the queen. 

5. Dhenu- Cow is our mother. 

6.Dhatri-Nurse is also a mother. 

7. Tatha prithvi-the earth is also our mother. 

Srila Prabhupada According to Vedic civilization, anyone who supplies milk from the body is a mother. So cow is a mother because we are drinking her milk. So from that point of view, one cannot kill the cow. If a boy wants to understand, "Who is my father?" the only authority is the mother. Vedic literature is considered to be the mother. She gives evidence that God or Lord Krishna is our father.