This relates to the promise that Moshiach is coming when "Yafutzu Mayonosecha Chutza" (your wellsprings will spread outward). Influencing others is gemilut chasadim. To give better shiurim, increase your yirat shamayim. Learning Mishnayos orally helps with forgetfulness. https://www.torahrecordings.com/rebbe/igroskodesh/011/009/3579