Vargottama is the position of a planet when it falls in the same sign in both the rasi chart (D-1) and the navamsa chart (D-9). The result of the position of vargottama is the strengthening of the planet, as a result of which it is able to exert a strong and beneficial influence and the person will be physically and mentally healthy according to the energies of the planet in vargottama. Vargotamma shows that the potential of the planet in the external sphere correlates with the indicators of internal life and this gives powerful force to the realization of the qualities of the planet in vargottama. A planet in vargottama gives a resonance of the internal energies of the planet with external ones, these energies are combined, and this gives a person the opportunity to express their internal energies of the planet in external activities.
There is an opinion that vargottama strengthens the natural qualities of the planet, but not its strength, but strengthening the planet through strengthening and improving its natural qualities seems more logical and practical. It is important what sign the planet is in.