The mental image of the Buddha’s Lion’s Roar, to me, is suuuuper powerful. Something about it makes my spine quiver. I brought together a couple suttas for you, so that you may also enjoy the experience and understanding of the Buddha’s Lion’s Roar. Enjoy!
Sage Awakened-Root, explorer of mountains and mud, step down and reveal the practice of Attentive-Aimlessness for the sake of all [non]beings.
Sometimes, when I look real close, I can see that aspects of Pure Land Buddhism are an evolution of the practice of Buddhānusmṛti (recollection of the Buddha).