(idiom) limitless; vast; describing a space where the edges cannot be seen

extremely vast or limitless, as if stretching forever without boundaries

The endless sea of suffering; refers to the Buddhist concept that human existence is a cycle of pain without end, or more generally to any environment of extreme hardship or misery. Usually followed by the phrase [[回头是岸|回頭是岸|hui2 tou2 shi4 an4]].

to stretch to the horizon; to have no visible boundaries; describes a vast or wide expanse

The wonders of natural beauty are boundless; describes exceptionally beautiful scenery.

Boundless natural charms; describes a beautiful and vast landscape.

without beginning and without end; used to describe something that is both ancient and vast

(idiom) The sea of bitterness has no bounds, turn your head to see the shore. Originally a Buddhist concept meaning that enlightenment allows one to escape the abyss of worldly suffering, it is now used to urge people to repent and turn away from their wrongdoings to find a way out.

vast and without limits; immense; boundless