This post is sparked off by listening to Venerable Ru Jun’s discourse where he mentioned
毗卢遮那遍一切处
毗卢遮那那就是法身佛
This got me to Google for the following terms:
毗卢遮那 (Vairocana)
https://zh.wikipedia.org/wiki/毗卢遮那佛
https://en.wikipedia.org/wiki/Vairocana
化身 (Nirmaṇakāya) 报身 (Saṃbhogakāya) 法身(Dharmakāya)
https://zh.wikipedia.org/wiki/三身
https://en.wikipedia.org/wiki/Trikaya
Hope this helps.