Stopping to Admire a Tree (Learning while Travelling)

Avot 3:8

If a person is learning while traveling and stops and says "how beautiful this tree is," he has endangered his life. Why is the consequence so severe?

Abarbanel: When a person is learning he is connected to our life source. The person's stopping his learning is thus detaching himself from the life source.

The explanation of the Maggid of Mezeritch

Delivered at the OU Israel Center, March 11th, 2019, 4 Adar II 5779