Thermodynamics is a branch of natural science concerned with heat and its relation to energy and work. It defines macroscopic variables (such as temperature, internal energy, entropy, and pressure) that characterize materials and radiation, and explains how they are related and by what laws they change with time. Thermodynamics describes the average behavior of very large numbers of microscopic constituents, and its laws can be derived from statistical mechanics.
Shaktism (Sanskrit: , शाक्तं; lit., 'doctrine of power' or 'doctrine of the Goddess') is a denomination of Hinduism that focuses worship upon Shakti or Devi – the Hindu Divine Mother – as the absolute, ultimate Godhead. It is, along with Shaivism and Vaisnavism, one of the primary schools of devotional Hinduism.