Upvote:1
Just occurred to me, in terms of "middle":
Each of the ten realms or worlds are contained within each realm, the "mutual possession of the ten realms" (Jap. jikkai gogu).
In Tendai. Whereas in Huayen
Samsara is reality as experienced with dukkha. Awakening of Faith in Mahayana presents these aspects as mutually inclusive and inseparable.
Upvote:1
The aggregates of mind and body, being ever subject to cause and effect, as we saw above, pass through the inconceivably rapid moments of arising, presently existing, and ceasing (uppaada, .thiti, bha"nga), just as the unending waves of the sea or as a river in flood sweeps to a climax and subsides. Indeed, human life is compared to a mountain stream that flows and rushes on, changing incessantly (AN 7.70) "nadisoto viya," like a flowing stream.
https://www.accesstoinsight.org/lib/authors/various/wheel186.html
Upvote:3
I think you must be thinking of 'middle'. Things have beginnings, middles, and ends. And yes the suttas are filled with discussions of all three.
"It was not until I had thoroughly understood the six senses, the origin of the six senses, the satisfaction of the six senses, the problem with the six senses, the end of the six senses, and the way to the end of the six senses, that I knew of myself that I had attained the highest attaining."
Buddhism also discusses 'inside' vs. 'outside' or 'internal' vs. 'external' which is more easily understood as 'personal' vs. 'impersonal'; subjective versus objective.