The Alchemical understanding of the seven “Seals of the Planets” or “Furnaces of the Soul” can be compared to the Chakra System in Eastern traditions. However, in Alchemy we work with three levels of energy on which each of these energetic seals or chakras can be influenced: Nigredo, Albedo and Rubedo. The aim of practical Alchemy is to reach the highest level of vibrancy (Rubedo), which is linked to a profound development of personality and consciousness. As such, personality vices can be transmuted into virtues.

The life-giving energy flow upwards along channels in our bodies. These channels are referred to as the Nadis in Eastern traditions – meaning energy nerves. The Nadis intertwine along a core running in front of the spine – in Eastern tradition called the Shushumna. The seven Seals/Chakras are located along the Shushumna where the right and left Nadis intersect.
A visualization of this understanding can be found in the Alchemical symbol of the Caduceus, which features two snakes winding around a winged staff. A symbol still used today representing the field of medicine. Although, it seems modern medicine has forgotten its original meaning.

In my personal opinion, the tradition of yoga, the Chakra and Ayurvedic system are simply just Eastern versions of Alchemy.