Ashtanga vimanam literally means ashtaangams or eight limbs. The number eight has a special significance for us e.g. ashtakshari or mulamanthram, ashtanga yogam etc. pranava is an integral part of mulamanthram. There are very few temples with Ashtanga Vimanams. The vehicle of Sri Rangadhama is pranavakara. On the vimanam, nine kalasas are placed in the shape of a letter ‘T’ . These nine kalasas depict our (the jivas) navavidhasambandham with the Lord.
The ashtaksharimahamanthra is an eight syllabled mahamanthra. It is referred to as manthrarajam, the king of the manthras. In this every syllable is very powerful. Each of the syllable’s power is vested in each of the angams in eight directions. The devatha that represent each of these syllables was invoked in the place assigned to them. If devotees circumambulate this divine vimanam which is vested with the complete power of the ashtakshari manthra and pray with Bhakti, it fulfills all their desires and grants all their wishes.
The DivyaSaketham is one of the few temples that has an ashtangavimanam. Goshthipuram (Tirukoshtiyur) is the first. DivyaSaketham’sashtangavimanam is a replica of Tirukoshtiyur temple.