Namaste,

In my study I came across two verses:

1.The Truth of Spaces Vast,Seed of the Universe orb...

The note given says:Refers to the 'Hiranya Garbha' and Agni described as 'retas' descending from the antariksha in the Rig Veda.
Could any member point out the mantra/mantras that speak about the Hiranya Garbha,Agni-Retas-Antariksha or elaborate about these?

2:...the Mother that sends down the rains..

Is there any Devata(female) mentioned in the Vedas who causes rains?

Not related to these questions but an other doubt I have had since a long time.

Who is the rain god acc. to the Vedas,Lord Indra or Lord Varuna?In some books Sri Varuna is called as the god of water/seas/oceans and in some others is Sri Indra is said to cause clouds to yield rain.(Sometimes Varuna Yajna/Varuna Japa is performed to obtain rains).Are there more than one rain Devatas lauded in the Vedas?