Chapter 16Gods, Goddesses and Semi-Divine Beings · Agni
Book 5. Part Two: The Opening of the Inner Senses · Section Three: Symbols
There are many forms of Agni, — the solar fire, the vaidyuta fire and the nether fire are one Trinity — the fivefold fire is part of the Vedic symbolism of sacrifice.
* The vision you saw of the man and the fire at his feet was probably a vision of the God Agni from whom flows the fire of tapasya and purification in the sadhana.