The sudden inflow of energy, the rapture and the sense of release that one feels after a favourable period of meditation is not easy to sustain. The mind mostly misinterprets the experience, the heart seizes and appropriates it, while the physical body feels relieved and exhausted that it has ended. We tend to yawn and eat junk food after a period of meditation because the physical body is tamasic(dull) by nature and not accustomed to the newly attained tranquility. Instead of yawning and dissipating the energy gained during the meditation, the body needs to be molded to become more supple and receptive; the cells of the body have to be made more and more conscious through regular exercise and refined eating habits so that it can sustain longer and greater spiritual experiences. Sri Aurobindo denoted this power of the body as Dharana Shakti or Dharana Samarthya (retention capacity; Samarthya or Shakti = capacity, Dharana = retention).