It is often said that all of what we experience is nothing but an illusion. This may seem so because in effect we know our brains only receive chemical signals and from that we rebuild a model of what outside looks like.
But it may be even more fundamental: since we also discovered that energy is te basis of all matter, and all matter is in fact energy condensed to a very low vibration, even the chemicals that influence our brains are nothing but clusters of energy that convey a certain vibration into our brain, which is a larger cluster of energy with way more complex vibrations.
In the end it is all immaterial, and we should just make life into what is the most meaningful for us...