Rishi Marichi or Mareechi or Marishi (ṛṣi Marīci, ऋषि मरीचि) (meaning a ray of light) is the son of Brahma

Brahma

Brahma is the Hindu god of creation and one of the Trimurti, the others being Vishnu and Shiva. According to the Brahma Purana, he is the father of Mānu, and from Mānu all human beings are descended. In the Ramayana and the...

, the cosmic creator, and also one of the Saptarshi

Saptarshi

The Saptarishi are the seven rishis who are extolled at many places in the Vedas and Hindu literature. The Vedic Samhitas never actually enumerate these rishis by name, though later Vedic texts such as the Brahmanas and Upanisads do so. They are regarded in the Vedas as the patriarchs of the...

 (Seven Great Sages Rishi

Rishi

Rishi denotes the composers of Vedic hymns. However, according to post-Vedic tradition, the rishi is a "seer" to whom the Vedas were "originally revealed" through states of higher consciousness. The rishis were prominent when Vedic Hinduism took shape, as far back as some three thousand years...

), in the First Manvantara

Manvantara

Manvantara or Manuvantara , or age of a Manu , the Hindu progenitor of mankind, is an astronomical period of time measurement. Manvantara is a Sanskrit sandhi, a combination of words manu and antara, manu-antara or manvantara, literally meaning the duration of a Manu, or his life span .Each...

, with others being Atri

Atri

This article is about the sage named Attri. See also the gotra named Atri. For the Italian city, see Atri, AbruzzoIn Hinduism, Attri or Atri is a legendary bard and scholar and was one of 9 Prajapatis, and a son of Brahma, said to be ancestor of some Brahmin, Prajapatis, kshatriya and Vaishya...

, Angiras, Pulaha, Kratu, Pulastya

Pulastya

Pulatsya was one of the ten Prajapati or mind-born sons of Brahma, and one of the Saptarishis in the first Manvantara....

, and Vashishtha .

Before the creation started, Lord Brahma needed a few people who can be held responsible for the creation of the remaining Universe. Therefore he created 10 Prajapatis (Ruler of the people) from his Manas (Mind) and 9 from his body. Marichi is one of the manasaputras of Lord brahma. The 10 Prajapatis are as follows:

1. Marichi
2. Atri
   Atri
   This article is about the sage named Attri. See also the gotra named Atri. For the Italian city, see Atri, AbruzzoIn Hinduism, Attri or Atri is a legendary bard and scholar and was one of 9 Prajapatis, and a son of Brahma, said to be ancestor of some Brahmin, Prajapatis, kshatriya and Vaishya...
   
   
3. Angirasa
4. Pulaha
5. Pulasthya
6. Krathu
7. Vasishta
8. Prachethasa
9. Bhrigu
10. Narada
    Narada
    Narada or Narada Muni is a divine sage from the Vaisnava tradition, who plays a prominent role in a number of the Puranic texts, especially in the Bhagavata Purana, and in the Ramayana...
    
    

Marichi is then married to Kala and gave birth to Kashyap

Kashyap

Kashyapa was an ancient sage , who is one of the Saptarshis in the present Manvantara; with others being Atri, Vashishtha, Vishvamitra, Gautama, Jamadagni, Bharadwaja...

 (Kashyap is also sometimes acknowledged as a Prajapati, who has inherited the right of creation from his father).

Krishna

Krishna

Krishna is a central figure of Hinduism and is traditionally attributed the authorship of the Bhagavad Gita. He is the supreme Being and considered in some monotheistic traditions as an Avatar of Vishnu...

 in the Bhagavad-Gita says, "Of the Ādityas

Ādityas

In Hinduism, Āditya , meaning "of or related to Aditi", refers to the offsprings of Aditi. Adityas are solar class deities. In later Hinduism, Aditya is used in the singular to mean the sun.-Vedas:...

 I am Vishnu

Vishnu

Vishnu is the Supreme god in the Vaishnavite tradition of Hinduism. Smarta followers of Adi Shankara, among others, venerate Vishnu as one of the five primary forms of God....

, of lights I am the radiant sun, of the Maruts

Maruts

In Hinduism the Marutas , also known as the Marutagana and sometimes identified with Rudras, are storm deities and sons of Rudra and Diti and attendants of Indra. The number of Maruts varies from two to sixty . They are very violent and aggressive, described as armed with golden weapons i.e...

I am Marici, and among the stars I am the moon."