People frequently talk to themselves, and in fact, this is a usual occurance with possibly all of us, whether we verbalize this or simply think it. Some people have no qualms with talking to themselves in public, whereas, others sense embarrassment when speaking to themselves in public, and anything in between. Speaking to oneself can have several motives, such as anger toward people and hence an ingrained despondence to these people to the extent where negative remarks continuously emerge, or memorizing texts and hence verbalizing these, repeating a phone number so as to transfer it to another location such as a dial pad, practicing a language phonetically, or conversing with the self in order to solve problems. Here, speaking out loud is a medium of communication and another technology to mediate thinking, as it motivates the development of the thought process.

Such a process of speaking to oneself has been observed for at least several hundred years. Lev Vygitsky conducted work on this, as did many others. The ancients were conscious of this mediating speech, and for example, the Roman Marcus Tullius Cicero. Similarly, the German writer Heinrich von Kleist discussed the verbalizing of speech in the work, ‘On the Gradual Formation of Thoughts During Speech’ (1805). 

Speaking aloud to oneself can constitute a method of effective growth, as we grow from our pre adolescent stage to adults. We use internal speech both silently and aloud as a method of educating ourselves, and as guidance.. This speech then opposes the idea that we only benefit from outside sources, known as pure behaviourism, in order to grow and develop both personally and spiritually.