Spanda isn’t a physical movement that can be seen. Rather, it is a mental or physical pulsation or motion. The best way to imagine spanda is to think of a wave in the ocean, surrounded by others and emanating from all different places at once.
Abinahavagupta called spanda the “pulsation of the ecstasy of the Divine Consciousness." This word forms an important part of Kashmir Shaivism philosophy, which believes that the Ultimate Reality throbs with spanda at all times.
Through yoga practice and deep meditation, it is possible to feel the energy behind spanda and how it affects every experience in one's life.