Questions about the transparent (?) Shader

[eunchae 1]

Hello, everyone!

I have a question about shaders. Like in the image ...

It should shine like a lava shader.

For example ... I want to give a feeling of shining from the inside.

It's like seeing inside a ghost's body.

I don't know if the explanation is enough, but ... Could you tell me what keyword to search for?

 

Is it just necessary to adjust the transparency of the mantra shader?

 

Thank you.