How can a Subatomic Particle behave both as a Particle and as a Wave?

How can a subatomic particle behave both as a particle and as a wave? It is correct to note that here are no particles and that there are only fields (Art Hobson, April 2012; American Journal of Physics 81(3). DOI:10.1119/1.4789885.) It is even more correct to note that 'there is only oneself partnering with itself so not to be by itself'. Or, to be more concise. 'The one purpose of life is companionship aka love.'
~ Wald Wassermann, Physicist