What is this power of words? In our everyday routine, we use words to carry out all our transactions. If someone praises us then we get happy and if someone criticizes us then we get annoyed. If we take a closer look at this phenomenon then we will easily understand that when somebody is praising us or calling us names, that time no material comes and hits us. All that happens is, we just get to hear the sound of the words uttered by the other person. When that sound reaches our ears, our mind starts analyzing and interpreting that sound. If the interpretation given by the mind is positive then we get happy. If the interpretation given by the mind is negative then we get annoyed. It is true that the meaning of those words is already present in our mind. Words only invoke the meaning already present in our mind. This relationship between words and their meanings is known as ‘Shakti’ (power) in philosophy.
Harsha Yardi, Ashtavakra Gita: The Ultimate Solace