Buddhist psychology considers our tendency to spin off into the past, future, or sideways - away from present-moment reality - a central cause of suffering.
"The vicious proliferating tendency of the worldling's consciousness weaves for him a labyrinthine network of concepts connecting the three periods of time through processes of recognition, retrospection and speculation. The tangled maze with its apparent objectivity entices the worldling and ultimately obsesses and overwhelms him."
Bhikkhu Kantukurunde Nanananda. "Concept and Reality in Early Buddhist Thought. An Essay on Papanca and Papanca-Sanna-Sankha." Buddhist Publication Society, 1971. www.seeingthroughthenet.net