大乘起信論略述 2.195

2.195

論。當知真如至無量三昧　述曰。此顯真如為三昧本。謂此真如是三昧體。三昧乃是真如之用。一切三昧順真而生故。說真如為三昧本。若人修行真如三昧即能漸生無量。以此正觀真如體故。

[Treatise:] One should know that suchness is the [basis of all samādhis... gradually produces] immeasurable samādhis. [Exposition:] This shows that suchness is the basis of samādhi. That is to say, this suchness is the essence of samādhi, and samādhi is the function of suchness. Because all samādhis arise in accordance with truth, suchness is said to be the basis of samādhi. If someone cultivates the suchness samādhi, they can gradually give rise to immeasurable [samādhis], because they correctly contemplate the essence of suchness.