Open Dwelling Teaches Transience!
The Blessed One often praised Tree Roots as
a dwelling place:
Secluded in mind and guarded well by deities one lives there
truly devoted without longing or urging for any city or house...
And when the tender leaves are seen,
then turning green, and finally to shades of yellow as they fall,
one relinquishes mistaken belief in permanence once and for all!
Tree roots is thus granted by him the One as a serene scene no
wise and clever one should reject at all, for study of rise & fall!
Visuddhimagga I 74, Vin I 58, 96
More on this transient Impermanence