"In neuroscientific terms, this capacity to replace old neuronal connections with new ones is referred to as neuronal plasticity. The Tibetan term for this capacity is le-su-rung-wa, which may be roughly translated into English as "pliability". This means that on a strictly cellular level, repeated experience can change the way the brain works."
— The Joy of Living, Yongey Mingyur Rinpoche
A computational process is indeed much like a sorcerer's idea of a spirit. It cannot be seen or touched. It is not composed of matter at all. However, it is very real. It can perform intellectual work. It can answer questions. It can affect the world by disbursing money at a bank or by controlling a robot arm in a factory. The programs we use to conjure processes are like a sorcerer's spells. They are carefully composed from symbolic expressions in arcane and esoteric programming languages that prescribe the tasks we want our processes to perform.