Dr. Albert Hofmann (1906 - 2008) - the Swiss chemist who discovered LSD in 1943 - speaks about our perception of reality, consciousness and love:
"(...) All knowledge, and hence our entire humanity, is based on observing. Observing enhances our awareness of the wonder of creation and of our own creaturehood. Since the evolution of humankind parallels the expansion of consciousness , the perfection of seeing in order to observe is of greatest significance.
There are different levels of development in the progression from seeing to observing. Mere perception of an object without its arousing our interest it the first level. In the second the object stimulates our interest.
At the third level, the object is considered in more detail and examined, which is the beginning of thought and scientific exploration. The highest level of seeing and relating to an object is reached when the boundaries between subject and object, between observer and observed, between my consciousness and the outside world have been removed. When I am one with the world and its spiritual foundation. That is the state of love."
( from "Mystic Chemist - the Life of Albert Hofmann and His Discovery of LSD" by Dieter Hagenbach and Lucius Werthmuller - published by Synergetic Press (2011) - highly recommended!)