Best Power BI visual to write definitions

Hi,

I've created a static text definitions for each individual visuals on a dashboard in powerbi and was wanting to know the best way to go about visualizing these definitions. 

These definitions have small symbols that essentially explain what each visuals are doing for users who have never used this dashboard.

Problem:

I have small smybols like (arrow down, arrow up, hierarchy symbol) in my definitions but i cant seem to add them to my report...

Question:

I need a visual that can be written in text and also allow small images embedded in my static texts?

Thank you in advance Power BI Community!