What is the textual source of the 4 infinitudes and the 6 coolnesses?

If I remember this right I heard about the 4 infinitudes and the 6 coolnesses on podcasts. Not sure if I'm getting the names right and/or representing these properly. The question is, I'm looking for the textual source of these two lists in the scriptures. 4 infinitudes: - mind of a buddha - the mind in Jahna - space - world systems 6 coolnesses: - When the mind needs to be restrained you restrain it - When your mind needs to be exerted you exert it - When it needs to be encouraged to encourage it - When you should develop equanimity you develop the quality of equanimity - When there’s resolve on the mark of freedom you reserve on that mark - Delighting in freedom