In Philip K. Dick's "A Scanner Darkly," the protagonist contemplates taking a break from his chaotic life. He decides to park himself for a while, suggesting a desire for introspection and escape from reality. This idea of "alpha meditation" reflects his search for tranquility amidst turmoil, highlighting the internal struggles he faces.

The mention of exploring "various different altered states of consciousness" emphasizes his quest for deeper understanding and perhaps a way to cope with the overwhelming challenges around him. This phrase can be interpreted as a manifestation of his longing for clarity and peace in a confusing world, making it a poignant moment in the narrative.